Department of Zoology, Insect Science Laboratory, Bangalore University , Bengaluru , India.
Department of Applied Zoology, CARRT, Mangalore University , Mangaluru , India.
Int J Radiat Biol. 2019 Sep;95(9):1301-1308. doi: 10.1080/09553002.2019.1619950. Epub 2019 May 30.
Gamma radiation is mainly used for disinfesting insect pests as an alternative for harmful fumigants. The specific dose of radiation is known to affect different developmental stages of insect pests. The study was conducted to determine the effective irradiation doses for inhibition of developmental stages and adult longevity of the coffee berry borer, (Ferrari). Irradiation was carried with the following doses: five levels between 0.01 and 0.16 kGy for eggs, seven levels between 0.10 and 2.00 kGy for larva and prepupa, six levels between 0.10 and 1.60 kGy for pupa and ten levels between 0.10 and 3.20 kGy for adults. Egg development was completely arrested at 0.160 kGy. A dose of 2.00 kGy caused 100% mortality in the first and second instar larva and 98.99% mortality in prepupa. The dose of 1.60 kGy prevented adult eclosion from the irradiated pupa. The adult mortality was 100% at 3.20 kGy. A dose of 3.20 kGy could successfully provide complete security from all developmental stages of and prevent yield loss in green coffee as well as the spread of the pest.
伽马射线主要用于杀虫，以替代有害熏蒸剂。已知辐射的具体剂量会影响不同发育阶段的害虫。本研究旨在确定抑制咖啡果蛀虫（Ferrari）各个发育阶段和成虫寿命的有效辐照剂量。采用以下剂量进行辐照：卵用 0.01 至 0.16 kGy 的 5 个剂量水平，幼虫和预蛹用 0.10 至 2.00 kGy 的 7 个剂量水平，蛹用 0.10 至 1.60 kGy 的 6 个剂量水平，成虫用 0.10 至 3.20 kGy 的 10 个剂量水平。0.160 kGy 可完全阻止卵发育。2.00 kGy 可导致一龄和二龄幼虫 100%死亡，预蛹 98.99%死亡。1.60 kGy 可防止辐照蛹羽化出成虫。3.20 kGy 可使成虫死亡率达到 100%。3.20 kGy 的剂量可成功为提供来自各个发育阶段的完全安全性，并防止绿咖啡减产以及害虫传播。
