Effect of temperature ramping on the mortality of mango mealy bug, Droschia mangiferae under laboratory conditions
Effect of temperature ramping on the mortality of mango mealy bug, Droschia mangiferae under laboratory conditions
复制标题
实验室条件下温度升高对芒果粉蚧 Droschia mangiferae 死亡率的影响
DOI：
--
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
K. Chakraborty
中科院分区：
文献类型：
--
作者：
P. Nandi;K. Chakraborty
由于昆虫是变温动物，因此有效改变温度制度对于控制害虫威胁是明智的。在实验室条件下观察到高温（40-50°C）、中度（14°C 和 18°C）和低温（-4-0°C）条件对芒果粉蝽 Droschia mangiferae 生存能力的影响。高温状态分别从 40 °C 开始，低温状态从 -4 °C 开始。随后每个步骤的高温和低温均升高 2°C。样品昆虫死亡率的总体程度与高温升高的程度以及保留时间一致。在 480 和 50 °C 下，即使暴露 10-20 分钟也足以实现 100% 死亡率。然而，14℃和18℃的中等温度对粉蚧发病率的影响很小。当样品在4℃和0℃的低温下分别保持10和20分钟时，86.7%和100%死亡。
Effective alteration of temperature regimes is found prudent to check the insect pest menace as insects are poikilothermic. Effect of high (40-50 °C), moderate (14 °C and18 °C) and low temperature (-4-0 °C) regimes on the survivability of mango mealy bug, Droschia mangiferae was noted in laboratory condition. High temperature regime starts from 40 °C and low temperature from -4 °C respectively. Temperature of both high and low was subsequently increased for 2 °C for each step. Extent of sample insect mortality, in gross, was in consonance with the degree of elevated high temperature and also with the retention time. Even exposure of 10-20 minutes was sufficient to achieve 100% mortality at 480 and 50 °C. However, moderate temperature of 14 °C and 18 °C has very little visible effect on the morbidity of the mealy bug. When the sample was kept at low temperature of 4 °C and 0 °C, for 10 and 20 minutes respectively, 86.7% and 100% died.