EAST LANSING, Mich. — The following is a review of insecticide and miticide label changes and restrictions to the Michigan State University Extension Bulletin E0154, “2019 Michigan Fruit Management Guide.” Agri-chemical labels and regulations can change quickly, so use this information within the context of each compound’s legal label.
Insecticide 2019 label additions, clarifications and corrections
|Compound||Label changes/restrictions||Crop||Target pests|
|Apta||New registration||Apples, pears, blueberries, caneberries||Plum curcullio, leafrollers, thrips, spotted wing Drosophila, fruitworm, gall midge|
|Verdepryn||Registration expected in 2019||Pome and stone fruits, blueberries, caneberries||Internal feeders, leafrollers, spotted wing Drosophila, fruitworms, aphids|
|Intrepid Edge||New registration||Grapes||Grape berry moth, leafrollers|
|Versys||New registration||Pome and stone fruits||Aphids|
|Spear-Lep||New registration||Pome and stone fruits, berries||Leafrollers|
New insecticide label information for compounds listed in 2019 E0154
MSU Fruit Management Guide E0154 product numbers are in parenthesis ().
Apta (3) (tolfenpyrad) belongs to the Mitochondrial Complex I Electron Transport Inhibitors (METI 1), which work by inhibiting cellular respiration in the mitochondria. Apta is registered in pome fruits, stone fruits, blueberries and caneberries for control of a range of pests including fruitworms, leafrollers, aphids, thrips, leafhoppers, plum curculio, eriophyid mites, Rhagoletis and Drosophila fruit flies (suppression of spotted wing Drosophila). The maximum yearly amount of Apta 15 SC that can be applied is 53.5 ounces in pome fruits, 54 fluid ounces in stone fruits, 81 ounces in blueberries and 54 ounces in caneberries.
Verdepryn (22) (cyclaniliprole, Cyclapryn) belongs to the diamide class of insecticides, which work on the insect by activating ryanodine receptors, thus preventing muscle contraction. Verdepryn 100SL is expecting U.S. EPA registration in 2019 for pome fruits, stone fruits, blueberries and caneberries for control of a range of pests including leafrollers, codling moth, oriental fruit moth, plum curculio, aphids, pear psylla, Japanese beetles, Rhagoletis fruit flies, spotted wing Drosophila and fruitworms. Cyclapryn has shown to be relatively safe on most beneficials.
Intrepid Edge (29) (methoxyfenozide + spinetoram) is an insecticide that combines two active ingredients as a pre-mix formulated compound. It registered for use on grapes for the control of lepidopteran insect pests such as the grape berry moth and leafrollers. The maximum yearly amount of Intrepid Edge that can be applied is 38.25 fluid ounces in grapes. Note that the pre-harvest interval for this product ranges from 21 to 30 days, depending on the rate applied.
Versys 0.83DC (31) (Afidopyropen) is a chordotonal organ TRPV (Transient Receptor Potential Vanilloid) channel modulator, registered in pome and stone fruits for control of a range of aphids, including rosy apple aphids, green aphids, black cherry aphids and woolly apple aphids. Versys works by disrupting feeding and other behaviors in the target insects. The maximum yearly amount of Versys DC that can be applied is 7 fluid ounces (0.045 pound afidopyropen active ingredient) in pome fruits and 3 fluid ounces in stone fruits.
New insecticide label information for compounds not listed in 2019 E0154
Spear-Lep (GS-omega/kappa-Hxtx-Hv1a) is a peptide-based Biopesticide labelled for pome and stone fruits, blueberries, caneberries, strawberries and grapes for control of a range of leafrollers, aphids, fruitworms and tussock moth. Spear functions as a central nervous system inhibitor, and performance is enhanced when tank-mixed with Bacillus Thuringiensis (Bts). Spear-Lep has a zero-day pre-harvest interval and is relatively non-toxic to mammals, birds, fish, honeybees and other beneficial insects.
Drs. Wise, Isaacs and Gut’s work is funded in part by MSU AgBioResearch.
— John Wise, Rufus Isaacs and Larry Gut, Michigan State University Extension, Department of Entomology
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