Residual activity of reduced-risk insecticides against codling moth and Oriental fruit moth
James F. Walgenbach, Jim_Walgenbach@ncsu.edu, Marilyn J. Sawyer, firstname.lastname@example.org, and Raul T. Villanueva, email@example.com. North Carolina State University, Mountain Horticultural Crops Research and Extension Center, 455 Research Drive, Fletcher, NC
Field and laboratory studies were conducted in western North Carolina to measure the residual activity of reduced-risk insecticides on apples against the codling moth and oriental fruit moth. Reduced-risk insecticides tested included indoxacarb, methoxyfenozide, acetamiprid, thiacloprid, and novaluron, along with the organophosphate azinphosmethyl. Insecticides were applied in the field by either dipping apples into solutions of insecticides, or applying with an airblast sprayer. Fruit were removed from trees at weekly intervals, placed in either codling moth or oriental fruit moth oviposition buckets for 24 hr, incubated for one wk, and the number of hatched eggs and larval entries into fruit counted. Most insecticides exhibited longer residual activity against codling moth compared with oriental fruit moth. In general, the insect growth regulators novaluron and methoxyfenozide exhibited the longest residual activity, followed by the neonicotinoids acetamiprid and thiacloprid, and the indoxacarb had the shortest activity. Azinphsomethyl was intermediate between the IGRís and neonicotinoids.
Species 1: Lepidoptera Tortricidae Cydiapomonella (codling moth) Species 2: Lepidoptera Tortricidae Grapholitamolesta (Oriental fruit moth) Keywords: Apple
From Akalach Mohammed, Minor Use project Coordinator, Agriculture & Agri-Food Canada, November 24, 2005 I would like to recive a copy of the above publication. I am particularly interested in the novaluron data against Oriental fruit moth.