Abstract
Insecticidal evaluation of aqueous extracts of indigenous plant extracts in comparison with synthetic insecticide against Thrips (Scirotothrips dorsalis) on tomato was conducted under natural field condition during spring 2019. Experiment consists of 8 treatments (neem extract, tobacco extract, garlic extract, datura extract, lantana extract, eucalyptus extract, flonicamid (synthetic insecticide) and control following RCB Design with 3 replications. Treatments were applied thrice after 15 days interval. Results revealed that the three times application of the tested treatments showed varying toxicity against S. dorsalis 24, 48, 72 hours and 7 days after spray applications while ladybird beetle and green lacewing were also significantly affected when recorded 7 days after spray application. However, Flonicamid 50%WG proved to be the most effective till 7th and had lowest pest population followed datura and neem extract. neem extract in all the three spray application . Garlic and eucalyptus also produced significant results compared to control. Neem, tobacco, datura and flonicamid were found to be comparatively more hazardous to ladybird beetle and green lacewing population compared to eucalyptus, garlic and lantana to in all three spray application. Tomato yield was highest with flonicamid (12533 kg/ha) followed by datura and neem (11810 kg/ha and 11300 kg/ha) respectively, while lowest (8133 kg/ha) in control. It is concluded from the current research that flonicamid performed better against S. dorsalis but comparatively more hazardous to natural enemies however lantana, garlic and eucalyptus extract showed better result against S. dorsalis and comparatively safe towards natural enemies thus recommended to be incorporated in IPM program.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.