The Biological Response Of Mung Bean To High Temperature Stress

Callosobruchus chinensis is a kind of important pests of legume seeds,and the harm is quite serious.Due to various defects of chemical control of stored grain pests occur,the application of temperature control method to control the pest population has become more and more attention.The biological characteristics of mung bean on the high temperature is relatively small,the three groups temperature(35 C,45 C and 55 C)higher than in the suitable temperature zero was choosed to deal with the eggs,larvae,pupa and adult 30 min,60min,90 min,120min,150 min,180min,test different treatment temperature and treatment time on the fecundity and mortality of different stages.The results of the study aimed to provide theoretical basis for the sustainable control of Callosobruchus chinensis.The main research results are as follows.1.Under the same temperature conditions,the longer the treatment time and the same treatment time,the higher the temperature,the higher the mortality rate of mung bean.The highest mortality rates were 36.9%,94.6% and 100% respectively,when the egg stage,larval stage and pupal stage and adult after the temperature 35 ?,45 ? and 55 ? respectively deal with 30 min,60 min,90 min,120 min,150 min and 180 min.2.The different state of Callosobruchus chinensis to high temperature has certain ability to resist.Its ability to resist high temperature from strong to weak order is pupal stage > larvae > adult > egg stage.3.Different high temperature when handling these various insect state,the duration of the high temperature should be paid to attention.Analysis of test results is that 35 ? or below 35 ? temperature processing is unfavorable use in production.Using the 45 ? handling the pests,need to pay attention to the duration of the temperature should be higher than 180 min.Useing of 55 ? handling the pests,the high temperature duration should not be less than 150 min.