Communicational disruptionmechanisms for Oriental fruit moth,Grapholita molesta (Busck) (Lepidoptera: Tortricidae), were determined using a suite of mathematical tools and graphical operations that enable differentiation between competitive attraction and non-competitive mechanisms of disruption. Research was conducted in 20 field cages, each covering 12 mature apple trees. Commercial monitorin...

Invasive species can have profound effects on a resident community via indirect interactions among community members. While long periodic cycles in population dynamics can make the experimental observation of the indirect effects difficult, modelling the possible effects on an evolutionary time scale may provide the much needed information on the potential threats of the invasive species on the...

In the present study, besides morphological evidence, two bioassays, antenna-excision and hairpencil-excision, were used to demonstrate the presence of a male sex pheromone of the diamondback moth Plutella xylostella L. Although the antenna-excision bioassay demonstrated that a male aphrodiasic pheromone exists in the diamondback moth, it was proven to be not as important as the female sex pher...

A set of 10 polymorphic diand trinucleotide microsatellite loci were developed for the forestry pest insect, masson pine moth, Dendrolimus punctatus Walker . The expected heterozygosity at these loci ranges from 0.285 to 0.859, and the observed allele numbers from five to 19. Cross species amplification of these loci in four other congeneric pine moth species indicates variable levels of loci c...

the employment is a requisite if one wants to have a normal life, decent meals and a place to stay; it socializes the people and gives them some survival and esteem feeling in the society. besides that employment boosts personal well fear, morale integrity and self confidence. in india economy is diverse where employees are employed in agriculture, handicraft, a wide range of modern industries,...

Four sunflower accessions were compared with a susceptible check, hybrid '894', in the greenhouse to determine their resistance to the banded sunflower moth, Cochylis hospes Walsingham, and their interaction with Bacillus thuringiensis Berliner variety kurstaki. Antibiosis, expressed as lower larval weight, was detected in all of the accessions. In addition to being antibiotic, sunflower access...

We seek to characterize the learning tools (ie algorithmic components) used in biological neural networks, in order to port them to the machine learning context. In particular we address the regime of very few training samples. The Moth Olfactory Network is among the simplest biological neural systems that can learn. We assigned a computational model of the Moth Olfactory Network the task of cl...

In the northeastern United States, pitch pine ( Pinus rigida Mill.)–scrub oak (Quercus ilicifolia Wang.) communities are increasingly threatened by development and fire suppression, and prioritization of these habitats for conservation is of critical importance. As a basis for local conservation planning in a pitch pine–scrub oak community in southeastern Massachusetts, we developed logistic-re...

Delay of mating was examined as a possible mechanism for population decreases associated with mating disruption for codling moth, Cydia pomonella L., and obliquebanded leafroller, Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae). We examined the effect of delaying female mating 0, 2, 4, or 6 d while holding male age constant on life table parameters of both species. We found that inc...

in the course of study on larval parasitoids of carob moth, ectomyelois ceratoniae zeller (lep.: pyralidae), an hyperparasitoid wasp, pachycrepoideus vindemmiae rondani, was collected from pupae of apanteles sp. (hym.: braconidae). the latter species is the larval parasitoid of the carob moth. the p. vindemmiae belongs to the family pteromalidae and is a new record for iran insect fauna.