EFFECTIVENESS OF SLOW-RELEASE INSECTICIDE (CHLORPYRIFOS 10% W/W) AGAINST SITOPHILUS ORYZAE (L.) (COL. CURCULIONIDAE) IN PACKAGED WHEAT I.2

Print
Parent Category: 1982

TEE SZE PENG

SUMMARY

Adult rice weevils, Sitophilus oryzae (L.) were exposed to-slow- releas cehlorpyrifos (10% w/w) dispensers of sizes 1.5, 5, 15, 20 and 25 cm2) in wheat packages . Complete mortality of adult weeviils resulted after 30 days exposure in the packages treated with dispenser measuring 20 and 25 cm2. However, oviposition was not prevented as F1, progeny of weevils continued to emerge betweed 30 and 60 days, but most of the progeny that emerged were dead whwn examined at 60 days. No significant loss in weight of grain was not in packages treated with 5 to 25cm2 dispensers between 60 and 90 days. However, in these treatments, initial grain by aduilt feeding and larval development between 30 and 60 days was significant. The potential used of the insecticide formulation for controlling insects of store grains seeds were discussed

Full Text (341 KB)

 

Download Joomla Free Templates for your success.
Journal of Tropical Agriculture and Food Science (JTAFS)
Publication and Knowledge Management Programme, Corporate Communication and Quality Centre,MARDI Headquarters, Serdang Persiaran MARDI-UPM, 43400 Serdang, Selangor Malaysia
Telephone: +603- 8953 7201 | Fax: +603- 8953 7232
Copyright © 2024 JTAFS. All Rights Reserved.
Joomla Business Templates by template joomla