Optimal timing and order selection of insecticides for plum curculio management is based on matching the performance characteristics of each chemistry with plum curculio lifecycle development and tree phenology. Indians. Active ingredient equivalents between premix and single a.i. Receive Email Notifications for New Publications. The first eggs were laid at about 50 DD from the biofix, with codling moth egg hatch expected at 220 DD (June 2nd at the HVRL). However, with the loss of Calypso, loss of Lorsban use at PF, and loss of Guthion and other contact insecticides efficacious against CM, we are left with fewer broad spectrum insecticides that manage both PC and adult CM. This weather pattern is forecasted for this week as we near petal fall. Insect Biology, Ecology, and Management in Hudson Valley Agricultural Commodities, Historical Tree Phenology & Hudson Valley Fruit Production, New England Orchard Revival: Resurrecting and Managing Heirloom Apple, Hudson Valley Research Laboratory in the news, 2019 Cornell Pest Management Guidelines for Commercial Tree Fruit Production. There are two generations per year in most areas of the Southeast, but only one generation occurs in higher elevations of the southern Appalachians. Yet extended bloom of later apple varieties had sufficient pollination conditions in the Hudson Valley across varieties lasting for at least 10 days from the onset of bloom. insecticide products In the article “All in the Mix”, Dr. Art Agnello points out that ‘the amount of chlorantraniliprole a.i. *Primitive bee, specifically European apple sawfly The 2019 Cornell Pest Management Guidelines for Commercial Tree Fruit Production can assist in decision making during the growing season with on-line access available. ‘In the old days’ the broad spectrum OP insecticides targeting plum curculio would prevent codling moth damage. Organic Options for SJS: Use of Marrone Bio Innovations product Venerate XC contains the active ingredient Burkholderia strain A396. However, if timely petal fall applications are omitted the MPB will continue feeding on developing fruitlets well after petal fall. Plum curculio is a key early season pest on pome and stone fruits. MSU is an affirmative-action, equal-opportunity employer. There are many insecticides available for plum curculio control, but their performance characteristics vary greatly compared to our traditional broad-spectrum chemistries. In LD50 efficacy studies thiamethoxam applied directly to pollinators was found to have high toxicity. Cooperative Extension is based at North Carolina's two land-grant institutions, This may provide you the additional time necessary to more precisely target codling moth. It also has been observed by growers to have bee repellency if applied near bloom. The addition of the neonic’s, such as Admire Pro 4.6SC (imidacloprid) at 2.8 fl.oz./acre, Assail 30SG at 2.5-4 oz/acre, or the use of Exirel (cyantraniliprole) at 13.5-20.5 fl.oz./acre will provide the additional broad spectrum activity needed for RAA management, including green aphids and leafhopper. Depending on weather conditions, new adults can continue to enter until at least the first cover spray. The active ingredient for Exirel is cyantraniliprole, the anthranilic diamide class (Group 28), in the same class as Altacor (Rynaxypyr) with a broad spectrum of activity, which has shown strong eficacy against plum curculio. Apple and Plum Curculio had been found in Hudson Valley orchards on the 17th of May. *Leafhopper complex of white apple leafhopper (nymphs), potato and rose leafhopper (adults) The second focus of insect peat management for the next 3 days should be on Codling Moth (CM) as adults continue to emerge, mate and lay eggs. The warming trend this week should prove this either way. This includes cleaning up overgrown fencerows, hedges, and removing brush piles and leaf litter under which the beetles might hibernate. The rear half of the forewings are membranous and are bent downward with a distinct yellow triangle behind the head. The emergence period for PC can last for several weeks, however, we can see 40-60% of the total emergence occurring on a single day with very high egg laying damage levels over a 24 hour period. (In this posture, their strong resemblance to bark or debris makes them extremely difficult to detect.) Larva can be observed in untreated trees in Highland and scouting should include sampling and observations for RBLR in flowering clusters. Biology and control of Plum Curculio in conventional management programs: The insect to which we can attribute the highest losses in apple during the petal fall period is Plum Curculio. These sub-lethal effects will not prevent injury to fruit from adults, but will result in nonviable plum curculio eggs, thus no live larvae. Later in the season, adult beetles may create numerous round punctures in fruit skin. Conotrachelus nenuphar, plum curculio, or simply curculio is originally from Minnesota.It is an injurious pest in different North American states, as well as in some parts of Canada. *Beetle; specifically Plum curculio (PC) * San Jose Scale adult emergence on 20th May, * High numbers of Rosy Apple Aphid (RAA) in curling foliage that are best managed at this point with a neonicotinoid (Imidacloprid, Actara, Assail). This species is native to Texas and is commercially available for augmentative release. John Wise, Michigan State University Extension, Department of Entomology, Nikki Rothwell, Michigan State University Extension, and Mark Whalon, Michigan State University Extension, Department of Entomology - The beneficial nematode Steinernema riobravis has been shown to suppress curculio populations by 78-100%. This is especially true in northern orchads of the Champlain Valley into New England. Avaunt also works primarily by lethal activity, but ingestion is the important means for delivering the poison. *’Bug’ complex of Mullen plant bug, aphid complex of rosy, green and spirea aphid, wooly apple aphid