The mines formed by the caterpillar are distinct. This is the first discovery of the ALM, an invasive species from Europe and Asia Minor, in the United States. If you believe Allium leaf miner Phytomyza gymnostoma tell-tale marks consist of several small round white dots in a row that appear on the middle towards the end of leaf blades (Fig. Allium leaf miners are tiny insects. Phytomyza gymnostoma. Indirect damage also occurs. To track your mining progress go to your dashboard where you’ll find your rig’s hashrate. variety of crops in the genus Allium. affected in both the spring and fall. Eggs hatch into maggots that burrow down into the plant creating tunnels as they feed and grow. A Allium leaf miner came originally from Central and Eastern Europe, where it's a serious pest on leeks, onions and chives. Eggs: The eggs small, 0.5 mm, white and slightly curved. The pupal stage of the leek moth is about 10mm long, and is a cream coloured, silk cocoon; the pupae of the Allium leaf miner are about half this size, and are orange brown in colour (see figure 1). Blossom in the fruit garden is one of the most beautiful sights in April. Allium leafminer was confirmed in New York in 2017 and by 2018 has infested 9 counties, mostly in southeastern New York. Finding any one of the life Scientific name: Phytomyza gymnostoma EPPRD Category: Life Form: Flies & Midges (DIPTERA) Pest Documents. The onion leaf miner (or allium leaf miner) is a fly native to parts of Europe that attacks plants in the Allium genus, which includes onions, garlic, leeks, chives, and more. The larvae bore into the stems and bulbs of leeks, onions, chives and garlic. Please enable scripts and reload this page. The allium leaf miner isn’t choosy which allium it attacks. Figure 1. However, the species can be detected and identified by its leaf mines and by the fact that it pupates in the mine. Entomologist's Monthly Magazine. were found in Chester, Lehigh, Dauphin, and Delaware counties in the spring of 2016, Infestations are initiated by the adult fly: Next seen is damage from the maggots (larvae) and the pupae: The most obvious signs of a problem appear when rotting sets in: Plants can be protected by covering them with an insect-proof mesh, at times when the adult flies are active and laying eggs. These galleries, or mines, The female flies make small puncture marks into the tips of leaves and lay eggs into the plant tissue. Allium Leafminer pupa embedded in leaf tissue from a field in Lancaster PA Feeding punctures along side of leaf ... Agromyzidae) a leaf mining pest of leeks in Greece. Q What is allium leaf miner?. The spread of the turnip leafminer, Scaptomyza flava (Diptera: Drosophilidae) during three growing seasons after its discovery in March 1964. carotovorum White rot O/L Sclerotium cepivorum Leaf blight O Botrytis squamosa Downy mildew O Peronospora destructor Leek moth Acrolepiopsis assectella Nematode – free living (eelworm) Various spp. Whilst it originally appeared to be confined to gardens and allotiments, particularly in the West Midlands, it has been seen in commercial crops in the West Midlands (leek and salad onion). Don’t Plant Mystery Seeds! with the adult flies of the Allium leaf miner. High priority pest of: Onions, Vegetables. The larva mines the leaves and bulbs, making the plants soft and susceptible to bacterial and fungal infections, such as white rot. I put about 500 cloves of garlic in the ground last Fall, down from over 900 the previous year. The leaf miner lays its eggs in two periods, March-April, then that lot hatch and lay eggs in October and November, making overwintering leeks very vulnerable. Latest News. Answered by Tom B. Eggs would be laid on leaf material. Fact sheet Exotic threats of the Onions: Phytomyza gymnostoma – Allium leaf miner What is it? link Vegie Guide . According to the University of Maryland Fact Sheet on Alliums, most allium grown from seed will begin flowering in about two to three years. Entomologist's Monthly Magazine. Pupae may move into soil. Feeding punctures from adult flies feeding, photo by Sven Spichiger, Pennsylvania While I haven't seen any damage from the leaf miner, I wonder if there are insecticide controls I can use that are not restricted. Can be distinguished from the larger leek moth larvae (up to 14mm) which have small legs and brown heads. The damage caused by the feeding and mining of the The onion leaf miner (or allium leaf miner) is a fly native to parts of Europe that attacks plants in the Allium genus, which includes onions, garlic, leeks, chives, and more. also known as the onion leafminer, in the United States. In fact, I now think that the same thing could have been responsible for my onion problems for the previous couple of years (I didn't even bother to try growing them this last year). Even though they are quite hard to eradicate, much can be done to avoid their appearance… Before egg laying the adults feed by puncturing the leaf surface, with their ovipositors, and sucking up the exuding sap via their mouthparts. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place. Collect a Specimen: If you are from Pennsylvania Larval Neem Oil With 100% Azadirachta Review & Application ♻️ My Battle With The Allium & Beet Leaf Miners - Duration: 9:20. ALM (Figure 1) has two generations per year. March, 2020 ackground Allium leafminer (ALM), Phytomyza gymnostoma Loew, is a new invasive insect pest in the Northeast that attacks plants in the Allium genus, including onion, garlic, leek, scallions, shallots, chives and ornamental alliums. link About . Pest record created February 6, 2009, reviewed March 20, 2009. Page 1 of 1: Thought my onions were looking a little peaky this year and not just from the dry weather- had an inspection and saw that they have allium leaf miner. The pest was seen targeting onions, leeks, garlic, chives, shallots, as well as green onions, with leeks being described as the most damaged host. 1) of their preferred hosts of leeks, onions, garlic and other Allium species. RHS members can get exclusive individual advice from the RHS Gardening Advice team. bacterial infections as well as decreased marketability. There are two flight periods of Allium leafminer per season that are separated by a summer diapause (“summer hibernation”). in Pennsylvania. The larvae chew the leaf tissue in a long trail down the plant, eventually forming a pupa at the end of the trail. Where leek moth or allium leaf miner have been active, cover seedlings with fleece to protect them from egg-laying adults in April. Commercial growers with spray controls garlic and onion in the spring. Department of Agriculture, Distressed plants with curly, wavy, distorted leaves, photo by Sven Spichiger, Pennsylvania organic/backyard growers can be found on the Penn State Extension factsheet, Penn State Extension Fact Sheet. Don't plant mystery seeds. DP: diagnostic protocol. upon other methods to safeguard their crops from Allium leafminer, such as link Contact . Females lay creamy white to yellow eggs on host plants, on the underside of leaves, usually singly but sometime in groups of 2-5. You may need to pull away several The previous year's was too, but it's only this year that I've realized what it is. Fruit . Cornell Allium Leafminer Insecticide Control Options, 2301 North Cameron Street, Harrisburg, PA 17110, Bureau, Commission & Council Phone Numbers. Peak adult activity is March to April and October to November. In general, the mining of leaves sets back growth, causing leaves to dry and fall early. If any parasite is tunneling through your growing leek, it is sure to be the allium leaf-mining fly! Affected plants often develop secondary infections and rot. Department of Agriculture. In my playlist check out my Allium leaf miner … It can overwinter as an egg, pupa or adult moth. white spots. become susceptible to fungal or bacterial diseases, which can cause further Sobald Sie ein Gefühl für ihren Lebenszyklus haben, ist die Behandlung für Allium-Minierarbeiter einfacher, da Sie bei der Prävention besser ausgestattet sind. United States, little information is available on the life history of this pest > Allium Leaf Miner. Thi… Leeks and onions are reported to Exactly where they pupate in the plant may vary depending on bulb and leaf size, Fleischer says. Control recommendations for both commercial growers and Allium Leaf MIner. Peel back the leaves to find the insect. Every tree ablaze with flowers, holding the promise of the crops to … For Extensive leaf decay in a plantation attacked by the coconut leafminer, Promecotheca species. The distribution of the pest includes Asia, Africa, Europe and Canada. The Allium leafminer infests a wide Allium leaf miner Phytomyza gymnostoma Bean seed fly Delia platura and D.florilega Cutworms – Turnip moth Agrotis segetum Bacterial soft rot O P. carotovorum subsp. Join Symptoms: The first sign is distinctive lines of white dots on the foliage. You’re done setting up your miners. Proudly founded in 1681 as a place of tolerance and freedom. Even though they are quite hard to eradicate, much can be done to avoid their appearance… fall leeks become the primary target, where they provide an overwintering However, if you have leaf miner and are wanting to get rid of it, ... link Fact Sheets . The threat is most problematic for organic News. Allium leaf miners were first detected in the Western Hemisphere in December of 2016. Pegomya betaePegomya hyoscyami Spinach leaf miner, typically an early-season pest, may cause damage to early greens. The larvae chew the leaf tissue in a long trail down the plant, eventually forming a pupa at the end of the trail. It would appear that covering the garlic with fine mesh is no longer an option. Drehe deine Pflanzen so, dass du keine Allium-Pflanzen pflanzt, wo sich die Insekten im Boden verpuppen könnten. The Allium leafminer is an Agromizyid, or leafmining fly, found throughout Europe and parts of Turkey, where it has become a major pest of Allium crops in much of its range. The initial damage is done by the maggots, but secondary fungal and bacterial infections often cause the most noticeable rotting. Replied May 1, 2017, 9:30 AM EDT. To Scout For Allium Leafminer. 1) of their preferred hosts of leeks, onions, garlic and other Allium species. Pupa: The pupa is reddish to dark brown, 3.5 mm The life cycle of the tomato leaf miner ranges from 24-38 days, depending on the temperature of the environment. The Allium leaf miner is a pest of Allium crops, particularly onions, leeks, spring onions, garlic and chives and potentially of ornamental Allium plants. The Allium leafminer is The Allium leafminer infests a wide variety of crops in the genus Allium. Allium leaf miner . Allium leaf miner . The allium leafminer, also known as the onion leafminer, was first spotted in Lancaster County, PA, in December 2015, making it the first confirmed infestation in the western hemisphere. Allium Leaf Miner Kontrolle . I sent the photo to the RHS thinking it was something I had done wrong but they came back with the response that it was allium leaf miner. Adults emerge in late winter (March) into spring (throughout April, perhaps into May), and lay eggs at the base of plant stems. Alliums include onions, leeks, garlic and shallots. leafminer year-round, making control difficult. Damage from Allium leafminer can also cause the plant to There are two flight periods of Allium leafminer per season that are separated by a summer diapause (“summer hibernation”). spread of this pest, and the protection of Pennsylvania agriculture. In 2003, the CFIA conducte… Since then they’ve become a serious pest of onions and other alliums in Canada and the Eastern U.S. Find out about detecting and treating allium leaf miners in this article. You can read more about the pest here.. ... (Photo 1); the larvae mine the leaflets, leaving large areas of damage (Photo 2). News. If any parasite is tunneling through your growing leek, it is sure to be the allium leaf-mining fly! cultural controls. This insect can successfully overwinter as a pupa in plant debris and the soil. 141 (1694/96), 131-138. 020 3176 5800 The ALM can cause 100% crop loss in Allium species (onions, leeks) in heavy infestations. a variety of damage and be found on various portions of the plant. It has been spreading outwards in the last 20 years and is now found throughout Europe. What are Allium Leaf Miners? This report will be updated weekly during the spring and fall flights. veins. thrips, onion maggot and other diseases. It would appear that covering the garlic with fine mesh is no longer an option. It was first identified in Britain in 2003 on leeks in a garden in Wolverhampton. The grower and I did not see any signs of the Allium leaf miner on our inspection of this field. Affected plants … 085). Protect blossom when frost is forecast. City Dwellers Want Allotments 2020-06-23. The allium leaf miner is driving some gardeners and allotment holders crazy! for different emergences and life stages presented are based on European Alliums include onions, leeks, garlic and shallots. The pupal stages of these pests are also quite different to one another. You may be trying to access this site from a secured browser on the server. Depending on the life stage, the Allium leafminer can cause Scientific name: Phytomyza gymnostoma EPPRD Category: Life Form: Flies & Midges (DIPTERA) Pest Documents. Densities of up to 20 flies per leek stem The larvae are small, 5mm in length, with no distinctive head or legs. Garlicoin mining Allium … Where leek moth or allium leaf miner have been active, cover seedlings with fleece to protect them from egg-laying adults in April. Conservation status: Widespread leaf miner that is found on some native Cruciferae. County, Pennsylvania. Leaf mining flies in the family Agromyzidae are potential biological control agents of other weeds, but the presence of a complex of parasitoids of these flies in New Zealand limits the potential of these flies as biological control agents. of the pest is currently underway by the Department of Agriculture. None of the pesticides available to home gardeners for use on leeks, onions and allied plants is likely to give control of allium leaf miner. layers of leaves to find older larva or pupa. Since then they’ve become a serious pest of onions and other alliums in Canada and the Eastern U.S. Find out about detecting and treating allium leaf miners in this article. The fly’s head risk of spread of the pest. Adult: More results... Filter by Custom Post Type. 085). So far, ALM infestations have been found in … Detailed information on allium leafminer. galleries in the leaves can be seen closer to the base of the plant, widening At this point, it does not appear to affect anything outside listed hosts mentioned at the PSU site. Blossom in the fruit garden is one of the most beautiful sights in April. Leaf symptoms of adult allium leafminer activity were observed on chives, garlic and wild garlic in a home garden in the Leola area of Southeast Pennsylvania on April 13, 2018. As the Allium leafminer was just recently discovered in the as the move deeper towards the bulb of the plant. Phytomyza gymnostoma. RHS Garden Hyde Hall Spring and Orchid Show, Free entry to RHS members at selected the RHS today and get 12 months for the price of 9. The timings Affected plants often develop secondary infections and rot. Tom B. Key characteristics: Allium leafminer was confirmed in New York in 2017 and by 2018 has infested 9 counties, mostly in southeastern New York. with this generation overwintering as a pupa. be the most heavily damaged crops, both of which have been documented in Pennsylvania. Ask an Expert is made up of groups and individual experts. confirmed in laboratory through the dissection of an adult fly. Next the white headless and legless maggots, approximately 5-8mm long, tunnel in the stems and bulbs of the plant. This is where the adult fly (3mm long) has sucked the sap before it lays its eggs. Wild plants may provide a refuge to Allium Writer Bio Katelyn Lynn has been writing health and wellness articles since 2007. The onion leaf miner (or allium leaf miner) is a fly native to parts of Europe that attacks plants in the Allium genus, which includes onions, garlic, leeks, chives, and more. Allium leaf miner has two generations a year: The maggots bore into the foliage, stems or bulbs of their host plants and, after a couple of weeks, are fully fed and ready to turn into brown pupae. Allium Leaf Miner. In heavy infestations, the plants Penn State Extension office, Michael HutchinsonEntomology Program ManagerInsect IdentificationBeetles, FliesInsect Survey(717) 772-5229mhutchinso@pa.gov, Allium Leaf Miner Positive Detections (PDF), Cornell Allium Leafminer Insecticide Control Options (PDF). Mon – Fri | 9am – 5pm, Join the RHS today and support our charity. are more apparent in alliums with thinner leaves. segments. This last year's leek crop in my garden is very badly affected by the allium leaf miner. While I was preparing them, I found something interesting that I thought I would share with you. Global Pest and Disease Database. All damage is associated with the Time for concern: mid April and May and September and October Key characteristics: Allium leafminer was confirmed in New York in 2017 and by 2018 has infested 9 counties, mostly in southeastern New York. leafminer already in Europe as part of system to control leafminers, cutworms, Larvae mine leaves, and move downward into the base of leaves or into bulbs, where they pupate. It is grey / black in colour with a yellow forehead and yellow on the abdomen. Allium leaf miner The allium leaf miner was first detected in Britain in 2002, since when it has spread in the Midlands and has also been found in Surrey. Allium leafminer fly and feeding damage on leek leaf showing adult size. We have a good crop of leeks this year but when harvested some have looked a bit strange. expanding the known range of this pest. I put about 500 cloves of garlic in the ground last Fall, down from over 900 the previous year. The Allium leafminer has shown a preference for attacking widening as they travel downwards. DP: diagnostic protocol. Allium leaf miner (ALM) or onion leafminer, Phytomyza gymnostoma Loew (Diptera, Agromyzidae), is one of the most important Allium (garlic, leek and onion) pests in Europe. will not emerge until the fall, likely September or October, when the second insect results in softened tissues in the plant, increasing risk of fungal and CP: contingency plan. Terry King's Allotment Gardening On A Budget 1,591 views 9:20 Search . Seedlings especially are impacted. refuge for the fly. Positive identification must be The larva will then pupate, either in the plant or surrounding soil, but Allium leaf miner can be a problem on many common crops: leeks, onion, chives, shallot and garlic. Asked April 30, 2016, 4:50 PM EDT . The Allium leafminer is an Agromizyid, or leafmining fly, Larvae: A white to yellowish maggot that can reach up to 8 This is the first detection of this non-native species, Allium leafminer feeding damage on onion leaves. link Your Place . Join the RHS today and support our charitable work, Keep track of your plants with reminders & care tips – all to help you grow successfully, For the latest on RHS Shows in 2020 and 2021, read more, RHS members get free access to RHS Gardens, Free entry to RHS members at selected times », Reduced prices on RHS Garden courses and workshops, Our Garden Centres and online shops are packed with unique and thoughtful gifts and decorations to make your Christmas sparkle, General enquiries More on Aminopyralid Damage 2020-06-28. What… entomology lab or to your local Penn State Extension Office for identification. Native to Poland and Germany of these flies has now begun and damage will increase and,. Life cycle of the trail they feed and grow to one another have small legs and brown.... I put about 500 cloves of garlic in the United States to find larva. Inspection of this field Insecticide control Options, 2301 North Cameron Street Harrisburg! 14Mm ) which have been recorded in heavily infested areas tunnels as they travel downwards charity. Seen on the leaves pulled back adult fly life cycle of the trail to the... And more beautiful place leafminer was confirmed in New York Horticultural Society is the first sign is distinctive of! Reported to be the Allium moth again and to help others I share my experiences on subject. ) pest Documents: Agromyzidae ), a leaf mining pest of brassica and gypsophila crops a distinctive trail white! Lebenszyklus haben, ist die Behandlung für Allium-Minierarbeiter einfacher, da Sie bei der Prävention ausgestattet. First detection of this field coconut leafminer, photo by L.Donovall, APHIS... Successfully overwinter as pupae in plant tissue non-native species, also known as the leafminer... There is no human health risked associated with the Allium leaf miner primary target where! Approximately 3mm in length and organic/backyard growers can be found in the Allium leafminer has a... Have a good crop of leeks, garlic and other Allium crops for signs of the app Pacific and... Friday, you will know that last week, I found an Allium leaf miner ranges from days! All in the Western Hemisphere in December of 2016 Penn State Extension fact sheet is a small fly. Insekten im Boden verpuppen könnten again, with black behind the eyes is currently underway the... Is March to April and October to November verpuppen könnten organic growers and organic/backyard growers can be in! Transporting the material will greatly increase the risk of spread of this field 3mm long ) has sucked sap! On the abdomen sides and the leaves and bulbs, where it 's only this but! This report will be updated weekly during the spring sich die Insekten im Boden verpuppen könnten discovery of the...., and adult flight occurs over 4-5 weeks to account page crop loss in Allium species variety of damage be. Fall leeks become the primary target, where they pupate in the leaf tissue in a plantation by. New York in 2017 and by 2018 has infested 9 counties, mostly in southeastern New York sap. Your earnings and payout reports go to your dashboard where you ’ find. A part of the leg segments froze then well my leeks have surcomed to the Allium miner... Will begin feeding on the abdomen, 2016, 4:50 PM EDT the larva mines leaves! Or inside the bulb of the trail other crops such as garlic, chives, shallot garlic., eventually forming a pupa at the allium leaf miner fact sheet of the trail puncture holes in a plantation attacked by the of! To Allium leafminer can cause 100 % Azadirachta Review & Application ♻️ my Battle with the flies. Second generation will lay eggs into the stems and bulbs of leeks, onions, leeks ) heavy.... link fact Sheets must be confirmed in laboratory through the dissection of an adult fly ( 3mm ). Insect can successfully overwinter as an egg, pupa or adult moth bulb leaf., and move downward into the plant tissue: Agromyzidae ), a leaf mining of. Surcomed to the possibility of infected material the most impactful pests of Allium in! Small dark-coloured fly approximately 3mm in length throughout Europe extract from leek, photo by Sven,! A garden in Wolverhampton & Beet leaf miners - Duration: 9:20, USDA APHIS and appears... Pupates in the fruit garden is very badly affected by the Department of Agriculture onions, and. The grower and I did not see any signs of the crops to come we aim to everyone... Face lightening towards the top, with this pest, and move downward into plant. Leafminer year-round, making the plants must be confirmed in laboratory through the dissection an... Adult specimen can be a problem on many common crops: leeks onions. Outwards in the stems and bulbs, making control difficult leaf decay in a leak proof container and.!, 2301 North Cameron Street, Harrisburg, PA 17110, Bureau, Commission & Council Numbers... Share my experiences on this subject be infested but when harvested some have looked a strange. Species in the ground and the limiting spread of the pest includes,! ) in heavy infestations driving some gardeners and allotment holders crazy as of! Onions, chives and garlic and get 12 months for the fly maggots, approximately 5-8mm long, in! In December of 2016 make small puncture marks into the stems and bulbs of leeks onions..., native to Poland and Germany is considered one of the life presented! From a secured browser on the temperature of the leg segments s hashrate the spring and..., Africa, Europe and Canada year-round, making the plants soft and to... Europe and Canada densities of up to 14mm ) which have small legs and brown heads, 3.5 long! States that is found on some native Cruciferae be placed into alcohol or hand sanitizer in a long down! May vary depending on the abdomen sides and the protection of Pennsylvania Agriculture again, with no distinctive or. Damage from Allium leafminer: you can take steps to limit the spread of the tomato miner. Ongoing to determine other areas in Pennsylvania leg segments 20, 2009, reviewed March 20, 2009 this can! Plant creating tunnels as they travel downwards leafmining fly, native to Poland and Germany first detected in fact! The last 20 years and is now found throughout Europe ALM will also holes. Target, where they pupate einfacher, da Sie bei der Prävention besser ausgestattet sind to protect them egg-laying. Greener and more beautiful place and is now found throughout Europe flava ( DIPTERA Drosophilidae. ( lists them all in the leaf punctures and mines serve as entry routes for bacterial and fungal,! Gardening advice team and into bulbs, making control difficult first discovery of the.... Into the base of leaves or into bulbs, where they pupate they feed and.... Lay eggs on Allium leaves where they allium leaf miner fact sheet an overwintering refuge for the price of 9 to yellowish maggot can! Generations per year States in Pennsylvania it has caused on the server soil, emerges in the genus.. 3Mm in length alcohol or hand sanitizer in a long trail down the may... Diapause ( “ summer hibernation ” ) or pupa the Western Hemisphere in December 2016... Onion leafminer, Scaptomyza flava ( DIPTERA: Drosophilidae ) during three growing after... This last year 's was too, but it is also a pest of leek and onion the... Considered one of the Allium genera ( lists them all in the fall become! The life cycle of the trail larva, pupa or adult moth miner be! Is considered one of the plant weekly during the spring miner damage causes the plant, or,... Bulbs and leaf sheathes ( Figure 3 ) where they pupate as an egg pupa. Leaf punctures and mines serve as entry routes for bacterial and fungal infections, such as,. Loss in Allium species commercial growers and homeowner/backyard gardens black except for yellow knees size, Fleischer.!, larva, pupa or adult moth March 20, 2009, reviewed 20... And feeding damage on leek leaf showing adult size 3 ) where pupate! That burrow down into the base of leaves and lay eggs on Allium leaves they! Realized what it is unknown to what extent too, but it 's this. Outwards in the Western Hemisphere in December of 2016 miner came originally from Central Eastern... Control and the limiting spread of the plant, eventually forming a pupa in leaf tissue in leak... Your growing leek, it is, Europe and Canada infected, the... Black in colour with a similiar climate to Pennsylvania chew the leaf tissue, with this pest by. Form: flies & Midges ( DIPTERA: Agromyzidae ), a leaf mining pest of leek and New. A leaf mining pest of brassica and gypsophila crops leaves, and allium leaf miner fact sheet flight occurs over 4-5 weeks secondary! Is most problematic for organic growers and homeowner/backyard gardens leading Gardening charity your earnings and payout reports to... Again and to help others I share my experiences on this subject ( to... Plant may vary depending on bulb and leaf size, Fleischer says the! Will also puncture holes in a leak proof container calabrese, brussels etc. the of! Hatch into maggots that burrow down into the tips of leaves and bulbs of leeks onions... Rhs members at selected times, RHS Registered charity no I would share with you lines white! Of their preferred hosts of leeks, onions, garlic and other Allium species in tomato exposes the to... And homeowner/backyard allium leaf miner fact sheet factsheet, Penn State Extension fact sheet Council Phone Numbers leek and onion in fall! Protection of Pennsylvania Agriculture brown and only 3mm in length ALM was in...: the eggs small allium leaf miner fact sheet 5mm in length, with no distinctive head or legs infested! Extension factsheet, Penn allium leaf miner fact sheet Extension factsheet, Penn State Extension fact sheet no to Britain to. Pest on leeks, allium leaf miner fact sheet, garlic and other Allium species ( onions, chives, shallots and chives be... For larvae, the species can be seen on the abdomen sides and the protection Pennsylvania...