Organic Control. As RBLR has been flying since the 19th of March, we have seen peak trap catch and the approximate start of egg hatch occurred on Monday, March 22nd continuing on through bloom. The insect complex includes: A mechanical method of control known as jarring is also sometimes used. Once we reach 308DD50 PC will no longer be migrating into orchards, at which point insecticides for PC can cease. When disturbed, adults fold their legs close to their bodies and remain motionless. * Very little in the way of European apple sawfly (EAS) and lep larva injury to developing fruit during fruit development. To contact an expert in your area, visit, or call 888-MSUE4MI (888-678-3464). If you are transitioning from neonicotinoid to a contact contact insecticide, such as Imidan or the pyrethriods used alone, then consideration should be made for RAA management prior to leaf curl and fruit injury before full establishment of this pest in the orchard. Spotted Lanternfly (SLF) Adult and Overwintering Egg Masses Establish in the Hudson Valley & Southern Tier. Plum curculio, a snout beetle, is an important pest on stone fruits like plums, cherries, and peaches. Using the PC model, we are presently at 141 DD50 from the biofix (90% PF in Mc). Management: After the whole orchard petal fall application is made, border applications for PC management can made to reduce migratory adults until the whole orchard application for Codling Moth needs to be applied. There are many insecticides (and an organic option) available for control of plum curculio, but according to Michigan State University Extension, their performance characteristics vary greatly compared to our traditional broad-spectrum chemistries.These conventional insecticides, such as organophosphates (OP) and … Late applications or a delay in PC management during cool years of prolonged bloom, will allow EAS larva to hatch and begin feeding, giving rise to apple injury. between the use rates of Endigo (0.046-0.055 lb) and Actara (0.070-0.086lb). 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. Find more information at the following NC State Extension websites: N.C. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. Application of proper insecticide during the pink and petal-fall stages of apples, also the petal-fall and shuck-split stages in peaches and cherries is usually enough to reduce plum curculio damage to a minimum. PC seem to prefer fruit in the 5 to 15mm range. *Beetle; specifically Plum curculio (PC) (Historical Phenology Table). Activity of the insecticide is primarily through larval ingestion of foliage, excellent coverage is necessary for effective control. insecticide products In the article “All in the Mix”, Dr. Art Agnello points out that ‘the amount of chlorantraniliprole a.i. Organic Options for CM Management: include granulosis virus such as Cyd-X 0.06SC using high rates and applications at 5-day intervals beginning at first hatch to end of hatch has been shown to work very well in combination with mating disruption. *Leafhopper complex of white apple leafhopper (nymphs), potato and rose leafhopper (adults) Transitioning to Organic Insect and Mite Control in Orchards Several key pests, such as codling moth, plum curculio (only east of the Rockies), cherry fruit fly, and stink bugs can render the better part of a fruit crop unsaleable if ignored. This includes cleaning up overgrown fencerows, hedges, and removing brush piles and leaf litter under which the beetles might hibernate. PC activity is correlated with weather conditions after bloom: infestation tends to occur the first day after petal fall when high temperatures exceed 70° F. After bloom, check fruit twice weekly for feeding and egg-laying scars.