As the range of the gypsy moth expands, there is a need to educate forest pest management personnel and others on methods available for estimating egg mass populations. Gypsy moth caterpillars, like most caterpillars, feed on the leaves of certain trees while they are developing through their caterpillar stages before eventually pupating into a moth. Categories: Gardening. Do not remove the egg sacks from the tree, spray them right where they are. Just another reason to check all vehicles for egg masses each spring and to “buy it where you burn it,” and not move firewood. Photo credit: Hannes Lemme, Bugwood.org. Gypsy moth egg masses are tan-colored lumps about the size of a nickel or quarter, and usually contain 500 to 1,000 eggs. Eliminating egg masses now will prevent leaf eating caterpillars next spring. Scrape egg masses into a bucket or similar container filled with soapy water, or burn or bury the egg masses. Do not use motor oil, mineral oils, non-horticultural oils or others not labeled for gypsy moth. Through the years gypsy moth has ‘hitched a ride’ on some of these objects and expanded their Michigan range. Each egg mass can contain anywhere between 50-1,500 eggs of caterpillars, so removal can be the best way to eliminate these messy caterpillars in your landscape. Gypsy moth is a non-native pest that has adapted to Michigan forested landscapes. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. Gypsy moth egg masses are tan-colored lumps about the size of a nickel or quarter and can be found on trees, buildings and other outdoor objects. When populations are low, gypsy moth caterpillars and adults can be killed by squishing them. Because the female moths cannot fly, and the caterpillars travel mainly by using silk strings and the wind, the eggs will usually be laid on or near the property from which it hatched. Search for gypsy moth egg masses on trees, firewood and outdoor furniture. MID-OCTOBER—MID-APRIL: Destroy egg masses. Gypsy moth control surveys are usually done in the fall, and it is important that the surveyors are able to get a true count of gypsy moth populations. Egg masses should be destroyed by soaking them in a bucket of warm, soapy water overnight. Scraping and destroying any egg masses you can reach onyour property is the single best way you can help yourselfand your neighborhood deal with a gypsy moth infestation in your area. Removing and Destroying Egg Masses Check for egg masses before covering your wood. Destroy egg masses by spraying them with a horticultural oil labeled for gypsy moth egg masses (available at lawn and garden centers or online) or by scraping them off and killing them. This fall is an excellent time to look for and dispose of gypsy moth egg masses that were produced by adult moths this summer. August 14, 2015. This article was published by Michigan State University Extension. The spotted lanternfly egg mass, left, is muddy in appearance. Further- more, there have been some important scientific contributions to the development of better … Copyright © 2009, Purdue University, all rights reserved, site authors Cliff Sadof, An equal access/equal opportunity university. You can get a bucket or a container that’s big enough to contain the egg masses and dump them in. September to late April: Remove and destroy egg masses. The gypsy moth eggs, right, are covered in brown hairs and appear fuzzy. The gypsy moth hibernates in egg masses that are covered with tan or buff-coloured hairs, and may be found on tree trunks or bark, outdoor furniture, or the sides of buildings. Scrape The Egg Masses. Make it a family project. The result is a small mound of caterpillar eggs and hair that can survive even a Northern Michigan winter. Do not use motor oil or mineral oils. To have a digest of information delivered straight to your email inbox, visit https://extension.msu.edu/newsletters. You can tell how bad the infestation is by the size of the egg mass. This will smother the gypsy moth larvae (caterpillars) within the eggs. Remove objects around the yard that may harbor gypsy moth egg masses. Gypsy Moth Egg Mass Search Why – The gypsy moth caterpillar eats the leaves of trees, which can impact the overall health of the tree. One effective way to reduce the spread of this invasive pest is to collect and destroy their egg masses before they hatch. Ifyou do find evidence ofgypsy moth on yourproperty, please call your municipal offices and let them know. Gypsy Moth Wars. Spray the oil onto the egg mass until it is soaked. Gypsy moths hide their egg masses in dark, protected areas. If the County you live in does not have a control program, consider removing egg masses as you see them from September – April, before hatch occurs. Every spring eastern tent and gypsy moth caterpillar seem to appear out of nowhere to feed on the leaves of our Michigan trees. In the spirit of ‘every little bit helps’ they are running a contest to encourage us all to identify, scrape off and destroy egg masses. Don’t drop them on the ground or put them in your composter as the caterpillars will still emerge. The 4-H Name and Emblem have special protections from Congress, protected by code 18 USC 707. Depending on the location, egg laying is complete by mid-September. Spray the oil onto the egg mass until it is soaked. Michigan State University Extension programs and materials are open to all without regard to race, color, national origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status or veteran status. Spray the oil onto the egg mass until it is saturated. Use a paint scraper or a knife to lift off egg mass and dispose of it. If the County you live in does not have a control program, consider removing egg masses as you see them from September – April, before hatch occurs. If you find masses of gypsy moth eggs on your trees or any other form of outdoor wood, you should scrape them off immediately. They may also be found in protected places such as firewood piles and bird houses. If you scrape off egg … This will smother the gypsy moth larvae (caterpillars) within the eggs. Gypsy Moth Egg Masses Once caterpillars reach the maturity, they pupate for around 10-14 days within a hard shell that the caterpillar locates in a corner, or crevasse, or within the ridges of the bark of a tree. See the Caterpillar Comparison Chart to determine which type you have. Check for and Destroy Gypsy Moth Egg Masses Total People in Discussion: 0 . For more information, visit https://extension.msu.edu. Egg masses are present from mid-summer through spring in Indiana, nearly nine months, so there is plenty of time to find and destroy them before they hatch. The egg masses are about the size of a loonie, and may contain from 100 to 1,000 eggs. The best time to remove the masses is in the fall after … A gypsy moth egg mass attached to the trunk of a tree. Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. Now, the deciduous trees have been producing new leaves. Tent caterpillars look similar to gypsy moths and also feed in the spring. Spring caterpillar hatch can be lessened without using chemicals by finding and eliminating the egg masses from which the caterpillars hatch. MSU is an affirmative-action, equal-opportunity employer, committed to achieving excellence through a diverse workforce and inclusive culture that encourages all people to reach their full potential. The temperatures are above 40 degrees Fahrenheit ( and destroying ) egg masses into a bucket or similar filled. Been more extensive oil onto the egg masses a nickel or quarter, and may contain from to! Through the years gypsy moth larvae ( caterpillars ) within the eggs, she plucks hairs of! Not imply endorsement by MSU Extension, East Lansing, MI 48824 eating caterpillars next spring because most are from. 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