Abstract
Results from no-choice field and greenhouse studies established an inverse relationship between plant trichome density in cotton and the level of successful attacks on Heliothis zea (Boddie) eggs by the parasite, Trichogramma pretiosum (Riley) and the predator, Chrysopa rufilabris (Burmeister). Thus, plant damage from H. zea can be reduced on glabrous cotton phenotypes due to antixenosis and increased entomophage effectiveness compared to hirsute and pilose phenotypes. Studies by other scientists which demonstrate interactions of natural enemies with host-plant resistance in cotton are also discussed. Symbiotic relationships between the host-plant and its associated predator/parasitoid complex may significantly influence the expression of host-plant resistance in cotton. Scientists involved in programs for development of host-plant resistant cultivars are encouraged to utilize sources of resistance which increase effectiveness of key natural enemies of the major pest species.
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.
