Results 211 to 220 of about 528,140 (277)

Use of aggregation pheromone traps increases infestation of adult Riptortus pedestris (Hemiptera: Alydidae) in soybean fields.

Pest Management Science, 2018
BACKGROUND An aggregation pheromone trap has been used for both monitoring and mass-capture of Riptortus pedestris (Fabricius) in soybean. As the trap's efficacy in reducing the pest population and crop damage is unknown, we evaluated it in small ...
Md Mahbubur Rahman, Eunmok Kim, Dongmok Kim, M. M. H. Bhuyain, U. Lim   +4 more
semanticscholar   +1 more source

Sulcatol: Synthesis of an aggregation pheromone

Journal of Chemical Education, 1982
Synthesis of the aggregation pheromone of the ambrosia beetle, an insect pest of harvested timber in the Pacific North Coast.
Shirley-Ann Black, Keith N. Slessor
openaire   +1 more source

Aggregation pheromone in Hypogastrura viatica (Collembola)

Behavioral Ecology and Sociobiology, 1977
An animal of the collembolan Hypogastrura viatica isolated on a substrate previously contaminated by individuals of the same species behaves as if it were part of an aggregate. The basic activity decreases by an amount equal to the constant of aggregation.
Johan Mertens, Ren� Bourgoignie
openaire   +1 more source

Increasing Blatticidal Efficacy with Aggregation Pheromone

Journal of Economic Entomology, 1977
Chlorpyrifos, diazinon, and propoxur were tested for repellency and efficacy against German cockroaches, Blattella germanica (L.). Repellency of each material was determined by using a relative avoidance index (RAI) and was directly proportional to concentration. Avoidance to each toxicant decreased significantly and mortality increased in choice tests
Michael K. Rust, Donald A. Reierson
openaire   +1 more source

Aggregation pheromone density based data clustering

Information Sciences, 2008
Ants, bees and other social insects deposit pheromone (a type of chemical) in order to communicate between the members of their community. Pheromone, that causes clumping or clustering behavior in a species and brings individuals into a closer proximity, is called aggregation pheromone. This article presents a new algorithm (called, APC) for clustering
Ashish Ghosh, Anindya Halder, Megha Kothari, Susmita Ghosh   +3 more
openaire   +1 more source

Male-produced aggregation pheromone ofCarpophilus obsoletus (Coleoptera: Nitidulidae)

Journal of Chemical Ecology, 1994
Males ofCarpophilus obsoletus Erichson produce an aggregation pheromone to which both sexes respond. The pheromone was identified by GC-MS as (2E,4E,6E,8E)-3,5,7-trimethyl-2,4,6,8-undecatetraene (1), which is also a minor constituent of the pheromone blends ofC. hemipterus (L.),C. freemani Dobson, andC. lugubris Murray.
R J, Petroski, R J, Bartelt, R S, Vetter
openaire   +2 more sources

Male-produced aggregation pheromone ofCarpophilus mutilatus (Coleoptera: Nitidulidae)

Journal of Chemical Ecology, 1993
Males ofCarpophilus mutilatus Erichson produce an aggregation pheromone to which both sexes respond. The pheromone includes two hydrocarbon components, (3E,5E,7E)-5-ethyl-7-methyl-3,5,7-undecatriene (1) and (3E,5E,7E)-6-ethyl-4-methyl-3,5,7-decatriene (2). These were emitted in a 10∶1 ratio and in a total amount of ca.
R J, Bartelt, D G, Carlson, R S, Vetter, T C, Baker   +3 more
openaire   +2 more sources

Aggregation pheromone ofDrosophila mauritiana, Drosophila yakuba, andDrosophila rajasekari

Journal of Chemical Ecology, 1989
(Z)-11-Octadecenyl acetate (Z11-18∶Ac) was identified as the aggregation pheromone ofDrosophila mauritiana, D. yakuba, andD. rajasekari. The amount of pheromone in the ejaculatory bulb of male flies increased with age, reaching plateau levels of ca. 240, 800, and 1100 ng/fly forD. mauritiana, D. yakuba, andD. rajasekari, respectively.
A M, Schaner, A M, Benner, R D, Leu, L L, Jackson   +3 more
openaire   +2 more sources

Aggregation Pheromone Density Based Pattern Classification

Fundamenta Informaticae, 2009
The study of ant colonies behavior and their self-organizing capabilities is of interest to machine learning community, because it provides models of distributed adaptive organization which are useful to solve difficult optimization and classification problems among others. Social insects like ants, bees deposit pheromone (a type of chemical) in order
Anindya Halder, Ashish Ghosh, Susmita Ghosh   +2 more
openaire   +1 more source

Male-Produced Aggregation Pheromone Blend in Platypus koryoensis

Journal of Agricultural and Food Chemistry, 2009
The ambrosia beetle, Platypus koryoensis , is a vector of Korean oak wilt disease, which causes massive mortality of oak trees (mainly Quercus mongolica ) in Korea. So that a semiochemical-based control method could be developed, its aggregation pheromone was investigated. Whole body extract and body part extracts of male and female P.
Junheon, Kim, Sang-Gil, Lee, Sang-Chul, Shin, Young-Dae, Kwon, Il-Kwon, Park   +4 more
openaire   +2 more sources