Previous studies and data presented here suggest that odors from healthy host Scotch pine (Pinus sylvestris) and nonhost Norway spruce (Picea abies), as well as major monoterpenes of these trees at natural release rates, significantly reduce the attraction of flying bark beetles, Pityogenes bidentatus, of both sexes to their aggregation pheromone components grandisol and cis-verbenol in the fie...

Traps containing a combination ßoral and synthetic pheromone lure are used to monitor and manage Japanese beetles, Popillia japonica Newman (Coleoptera: Scarabaeidae). One key factor limiting trap effectiveness for beetle control is the “trap spillover” phenomenon, in which the trap attracts beetles without capturing them, resulting in increased damage to surrounding host plants. We investigate...

Identification of the Darna pallivitta (Moore) pheromone component n-butyl (E)-7,9-decadienoate (E7,9-10:COOn-Bu) has made it possible to investigate communication disruption to control this lepidopteran pest. Conventional communication disruption trials showed marked decreases in the mean number of male moths captured in E7,9-10:COOnBu-treated fields compared with control fields. For traps bai...

Sweetpotato, commercially grown in over 100 countries, is one of the ten most important staple crops in the world. Sweetpotato weevil is a major pest of sweetpotato in most areas of cultivation, the feeding of which induces production in the sweetpotato root of extremely bitter tasting and toxic sesquiterpenes which can render the sweetpotato unfit for consumption. A significant step towards im...

Field experiments were conducted to determine the effectiveness of different colored pheromone-baited traps in capture of Fall Armyworm, Spodoptera frugiperda , males and nontarget Hymenoptera. Plastic Universal Moth Traps (Unitraps) of different colors were baited with commercial sex pheromone and were placed in peanut and corn fields in northern Florida. In one study, standard-colored (green ...

This study compared the efficacy of SPLAT-OrB, a new pheromone formulation for oriental beetle mating disruption that can be mechanically applied, with hand-applied plastic dispensers in commercial blueberry fields. Both formulations were tested at 2.5 and 5 g of the major sex pheromone component (Z)-7-tetradecen-2-one per hectare, and evaluated by measuring trap shut-down, mating success of ca...

We conducted four behavioral choice tests in stands of mature lodgepole pine in British Columbia, from 1988 to 1991, to determine the dose-dependent responses of Orthotortzicw 1atid;ns (1,eConte) and Ips pini (Say) to their respective pheromones. Dose-dependent responses were exhibited by I. pini to (5)-ipsdienol and lanierone, with trap catches directly proportional to pheromone release rates....

Novel strategies for the management of soybean looper, Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae), are needed due to its increasing importance, costs, and challenges in soybeans (Glycine max [L.] Merr.; Fabaceae) Americas. Pheromone-mediated mating disruption may be 1 such novel strategy, but an effective tool estimating success must found. The technique trapping male moths using ...

The western flower thrips Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) is a cosmopolitan, polyphagous insect pest that causes bronzing to fruit of strawberry (Fragaria x ananassa). The main aim of this study was to test whether mass trapping could reduce damage and to predict whether this approach would be economically viable. In semi-protected strawberry crops, mass trapping...

Since the end of the seventies, in the Federal R e­ public of Germany, considerable damage caused by tortricid moths of the genus Cnephasia (Lepidoptera: Tortricidae) has been observed on a number of species of cereals. Pfalz and Rheinhessen were the main gradation areas for the omnivorous leaf tier, Cnephasia longana, and cereal leaf roller, C. pumicana. In these areas, the both insect species...