Abstract
During the summer of 1974 in the Imperial and Palo Verde Valleys of southern California, population densities of arthropod predators and Hetiothis spp. were studied after insecticide treatments for the pink bollworm. Geocoris spp., Orius tristicolor (White) and spiders were the most numerous arthropod predators. Chrysopa carnea Stephens and Collops marginellus LeConte were least affected by increased insecticide usage. The mean density of arthropod predators was significantly reduced while the mean density of Heliothis spp. was significantly increased by increased insecticide usage.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
