Peach fruit moth

Japanese female peach fruit moth have been synthesised (Scheme 10).2 9 The phosphine oxide starting material (51) was obtained from a Wittig reaction of the ylide derived from 1,1-diphenylphospholanium perchlorate. The reaction of (l-methyl-2-propenyl)diphenylphosphine oxide carbanion (55) with the optically active aldehyde (54) is the key step in a short synthesis of the sesquiterpenes (-)-a-selinene (58) and (-t-)-a-helmiscapene... 

Acetamiprid (2) is a broad-spectrum insecticide that is ovicidal and larvicidal against a wide range of sucking insects such as Hemiptera (especially aphids) or adults of Thysanoptera, Isoptera and Coleoptera pests. It has contact, stomach and systemic long-lasting action and is moderately activity against Lepidoptera such as the peach fruit moth Carposina niponensis), the oriental fruit moth Grapholita molesta), and the diamond back moth Plutella xylostella) and has ovicidal effects on these species as well (Table 29.2.1.6) [29]. 

Active component of female sex pheromone of the peach fruit moth Carposina nipponensis. 

Tamada et al. 653) have reported a synthesis of the unsaturated ketones (630) and (631), which are components of the peach fruit moth sex pheromone. 

Tamaki, Y., K. Honma, and K. Kawasaki Sex pheromone of the peach fruit moth, Carposina niponensis Walsingham (Lepidoptera Carposinidae) Isolation, identification and synthesis. Appl. Entomol. Zool. 12,60—68 (1977). 

Tamada, S., K. Mori, and M. Matsui Pheromone synthesis. 19. Simple synthesis of (Z)-7-eicosen-ll-one and (Z)-7-nonadecen-ll-one, pheromone of the peach fruit moth. Agric. Biol. Chem. 42,191—192 (1978). 

Two series of petroleum fractions and a series of synthetic isoparaffins prepared by the New York State Agricultural Experiment Station are described briefly. Their insecticidal efficiency on three unrelated pests—oriental fruit moth, European red mite, and cottony peach scale— is reported. 

Ilichev, A.L. Stelinski, L.L. Williams, D.G. Gut, L.J. Sprayable microencapsulated sex pheromone formulation for mating disruption of oriental fruit moth (Lepidoptera Tortricidae) in Australian peach and pear orchards. Journal of Economic Entomology 99(6), 2048-2054, 2006. 

The fall webworm moth (Hyphantria cunea) is a troublesome pest in Europe and Japan, where its larva attacks fruit trees and ornamental trees such as grape, peach, pear, apple, cherry, poplar and platan. Its female-produced pheromone was first studied by Roelofs and coworkers, who identified three pheromone components A, B and C (Figure 4.42) in 1982. 

Another example of organic synthesis via cross-metathesis is the synthesis of biologically active compounds such as insect pheromones. Use of such pheromones offers an effective and selective pest control method. Thus, cross-metathesis of ethyl oleate with 5-decene results in a cis-trans mixture of ethyl 9-tetradecenoate, an insect pheromone precursor [15]. Cross-metathesis of methyl d.y-5-eicosenoate (obtained from meadowfoam oil) with excess 5-decene gives methyl tm 5-decenoate, which can be transformed into a 83 17 mixture of trani -5-decenylacetate and tran.y-5-decenol (in total 90% trans), the sex pheromone of the Peach Twig Borer moth, a major pest in Northern Hemisphere fruit orchards. The isomeric mixture was active in mating disruption [16]. Other examples of organic synthesis via cross-metathesis are summarised elsewhere [17 18]. 

Another company (624, 625) supplies a controlled release dispenser, which is a three-layer plastic laminated sheet consisting of a bottom protective layer, a middle pheromone reservoir layer, and a top permeable layer through which the pheromone diffuses. The sheet can be cut into ribbons and applied over an area. Formulations have been field tested on a number of insect pests gypsy moth, pink bollworm, peachtree borer, lesser peach tree borer, soybean looper, cabbage looper, European elm bark beetle, tobacco budworm, fall armyworm, tussock moth, eastern spruce budworm, and Mediterranean fruit fly. 

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