Can. Ent. 108: 1281-1284(1976) The sex pheromones of Archips argyrospilus (Walker) and Archips rosanus (L.) were field evaluated to determine if they could be used to monitor populations in orchards where pest management programs were applied. Traps baited with the sex pheromones of A . argyrospilus caught males which reflected population levels estimated by other sample methods. Traps baited with the sex pheromones of A. rosanus caught high numbers of males but the numbers did not correlate with other population estimates. A. rosanus has a wide host range, and trap data indicate that males were attracted from sources outside the monitored orchards. Results indicated that the sex pheromones of A. argyrospilus could be used to estimate populations but with A. rosanus further studies on trap placement are necessary to minimize male influx.

Can. Ent. 103: 1741Ent. 103: -1747Ent. 103: (1971 The sex pheromone of the female eastern spruce budworm was identified as trans-11-tetradecenal by a combination of electroantennogram techniques, laboratory bioassays, and chemical analysis. Subsequent field trapping showed that this compound is a potent attractant for both male Choristoneura fumiferana (Clem.) and C. occidentalis Free. thus supporting its identification as a sex pheromone of the eastern spruce budworm and suggesting that it is alm a major component in the pheromone system of C. occidentalis. RQum6Identification de la phkromone, sexuelle skcr6tte par le papillon femelle de la Tordeuse des bourgeons de l'Epinette. I1 s'agit du trankll-tktradkcenal, d6celk ii l'klectro-antennogramme et par des essais biochimiques et des analyses chimiques. Outre le mlle de Choristoneura fumiferana, ce composk attire aussi le C. occidentalis m&, suggkrant qu'il forme aussi une partie importante d~ ,syst&me des phkromones appartenant B C. occidentalis.

The presence of branched-chain fatty acids was confirmed in 6 of 18 Conidiobolus species examined. Amounts varied from about 9% of total fatty acids in C. parvus to about 73% in C. adiaeretus, and in all cases included acids of the even-carbon-numbered iso series and the odd carbon-numbered anteiso series.

2% crosslinked divinylbenzene-styrene copolymer, incorporating benzoyl chloride groups, was used to monoprotect the symmetrical diol 1,lO-decanediol. The corresponding monotrityl ether and ci~-10-tetradecen-1-01 were prepared by this system, the latter by a Wittig reaction of a polymer-bound ylide with an aldehyde in the solution phase. A series of bifunctionalized resins containing proximally located trityl alcohol and benzoic acid groups was prepared in an attempt to prepare diol linked to the polymer via both a trityl ether and a benzoate linkage. It was established that these polymers bound 1,lO-decanediol exclusively at one end only. Polymers, containing both trityl alcohol and benzoic acid groups in a random array or polymers containing proximally located trityl alcohol groups, gave mixtures of both monoprotected and doubly protected diol. On a utilist un copolymkre divinylbenzene-styrene rtticult a 2% et incorporant des groupes

7 were oxidized with the Sharpless reagent (CrO,Cl,/tert-butyl alcohol/pyridine) to give polymer-bound aldehydes [35][36][37], which on reaction with Wittig reagents and subsequent hydrolysis and acetylation gave 28, 29, and 10-tetradecen-1-01 acetate (47)