Pine sawfly

The field response of the European pine sawfly, Neodiprion sertifer, to the acetate of (2S,3S,7S)-3,7-dimethylpentadecan-2-ol 1 and the effect of the (2S,3R,7R)-iso-mer was studied from Japan in the east to Canada in the west. The addition of the (2S,3R,7R)-isomer was benign in Japan, inhibitory in Europe with the inclusion of as little as 1%, and its presence essential in Siberia. These findings will allow for the development of a more efficient N. sertifer monitoring scheme without having to determine the stereochemistry produced in each population [27]. 

In Kentucky, the acetate of (2S,3S,7S)-3,7-dimethylpentadecan-2-ol 1 was used to assess the population density and flight activity of the European pine sawfly, N. sertifer, amongst the loblolly pine sawfly, N. taedae linearis, and the redheaded pine sawfly, N. lecontei. [28]. The results indicated that, although present, N. sertifer was a minor participant in sawfly populations. 

The application of fluorous mixture synthesis (FMS) for deriving natural products and their stereoisomers was demonstrated by the total synthesis of all 16 stereoisomers of the pine sawfly sex pheromoned ... 

The sex pheromone of the pine sawfly Diprion pint) is (25,5R, IRYiJ-dimethyltridec-2-yl acetate. This acetate was prepared from diastereomerically enriched (25, 3i , 7i )-3,7-dimethyltridecan-2-ol. 

R, 5R, 75)-3,7-dimethylpentadecan-2-ol, sex pheromone component of the pine sawfly Neodiprion sertifer, has also been synthesized enantioselectively. ... 

European Pine Sawfly Pine >Polyphenol Synt. (24)... 

Hallberg E. and Lofqvist J. (1981) Morphology and ultrastructure of an intertergal pheromone gland in the abdomen of the pine sawfly Neodiprion sertifer (Insecta, Hymenoptera) a potential source of sex pheromones. Can. J. Zool. 59, 47-53. 

Mertins J. W. and Coppel H. C. (1972) Previously undescribed abdominal glands in the female introduced pine sawfly, Diprion similis (Hymenoptera Diprionidae). Ann. Ent. Soc. Am. 65, 33-38. 

Species of pine sawflies in the genera Neodiprion and Pi prion secrete a sex pheromone dominated by either the acetate or propionate esters of 3,7-dimethylpentadecan-2-ol (138). Reproductive isolation of these sawflies appears to be partly related to the utilization of one or the other of these diasteriomeric esters. 

In the hydrogenation of p keto esters (R, R) tartaric acid gives the (R) alcohols and the (S, S) tartaric acid gives the (S) enantiomers. Raney nickel is more effective than supported nickel catalysts. It appears that the active catalyst is nickel tartrate which is adsorbed on the catalyst surface and that the sodium bromide is adsorbed on the non-chiral active sites, thus, keeping them from promoting the non-selective hydrogenations. 2,84 -pj is procedure has been used to prepare the chiral intermediate in the synthesis of the Pine Sawfly sex pheromone. ... 

Pine bark adelgids. 184 Pine-oak gall rusts, 185 Pine-pine gall rusts. 185 Pine sawflies. European. 319 Pine shoot moths. 183. 184 Pine tip moths. 183 Pink. See Dianthus... 

Raspberry crown borers, 199,291 Raspberry fruitworm beetles, 198-99 Raspberry fruitworms, 197-98,197 Raspberry horntails, 199-200 Raspberry leaf spot, 198 Raspberry sawflies, 198 Rats, avocado and, 31 Record keeping, 8,357,415 Redbanded leafhoppers, 302 Redberry mites, blackberry and, 44 Red cedar. SeeJuniperus Redheaded pine sawflies, 319 Rednecked cane borers... 

Threo-3- methylpcntane- 1,4-diol Oh threo Pine sawfly s 1,4-conjugate addition of an organocuprate [206]... 

Hengxiao, G., McMillin, J. D., Wagner, M. R., Zhou, J., Zhou, Z., Xu, X. 1999. Altitudinal variation in foliar chemistry and anatomy of yunnan pine, Pinus yunnanensis, and pine sawfly (Hymenoptera, Dlprionidae) performanee. J. Appl. Entomol. 123 465-471. 

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