|Table of Contents|

Effects of Temperature and Relative Humidity Stress on the Survival and Fecundity of the Melon Fly, Bactrocera cucurbitae (Diptera：Tephritidae)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年15
Page:
36-43
Research Field:
Publishing date:

Info

Title:
Effects of Temperature and Relative Humidity Stress on the Survival and Fecundity of the Melon Fly, Bactrocera cucurbitae (Diptera：Tephritidae)
Author(s):
HE Chao; KONG Qiong; YUAN Shengyong; SHEN Dengrong; XIE Kun; WANG Chuanming
(College of Life Science and Technology,Honghe University/Crop Cultivation and Safety Control Key Laboratory of Yunnan Province,Mengzi,Yunnan 661100)
Keywords:
Bactrocera cucurbitae; stress of temperature and humidity; survival; fecundity
PACS:
-
DOI:
10.11937/bfyy.20184372
Abstract:
Bactrocera cucurbitae was used as test insect,the biological characteristics of adult survival rate and longevity,number of eggs laid per female,egg hatching rate and emergence rate were studied after adult,pupae and egg were treated at different temperatures and humidity stresses using bioassay methods,in order to clarify the effects of temperature and humidity stress on the survival and reproduction characteristics of the melon flies.The results showed that the adult were treated at 39-43 ℃ for 1 hour,and the survival rate decreased with the increase of temperature.41.5-42.5 ℃ was the lethal sensitive high temperature area of adults.After treatment at 35 ℃ or 41 ℃ for 0.5-10.0 hours,the survival rate decreased with the prolongation of treatment time.After acclimation for 1 hour at 31-41 ℃,the survival rate of the adult at 43 ℃ increased first and then decreased with the increase of the acclimation temperature.After treatment at 43 ℃ for 2 h or 4 ℃ for 3 days,adult longevity and number of eggs laid per female were significantly reduced.At 33-47 ℃,the emergence rate of pupae decreased with increasing temperature.The eggs were treated at 41-43 ℃ for 15,30 and 45 minutes respectively,the hatching rate of eggs decreased significantly with the prolongation of treatment time.The emergence rate of pupae decreased with the increase of the soil water content.There is also a significant difference in the emergence rate when humidity stress was different for different ages of pupae.The treatment was carried out under drought stress for 1-9 days,and the emergence rate decreased with the prolongation of stress time.At 25 ℃,adults were treated at the relative humidity 0% or 100% for 10-130 hours,and the survival rate decreased with the prolongation of treatment time.Under drought stress,the emergence rate decreased significantly with the prolongation of high temperature or low temperature exposure time.The results showed that temperature and humidity stress had significant inhibitory effects on the survival and reproduction of the melon flies,and the inhibitory effect was closely related to the duration of temperature and humidity and the age of each stage of the melon flies in the stress.

References:

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Last Update: 2019-08-15