Effect of short-term high temperature stress on demographic parameters of Plutella xylostella (Lepidoptera: Plutellidae)

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EBRAHIMI NAJMEH; TALEBI ALI ASGHAR; FATHIPOUR YAGHOUB

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Journal: JOURNAL OF CROP PROTECTION Year:2020 | Volume:9 | Issue:3 Page(s): 507-522

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Title

Effect of short-term high temperature stress on demographic parameters of Plutella xylostella (Lepidoptera: Plutellidae)

Author(s)

EBRAHIMI NAJMEH | TALEBI ALI ASGHAR | FATHIPOUR YAGHOUB | Issue Writer Certificate

Keywords

Diamondback mothQ1

DemographyQ1

crucifersQ1

population fluctuationQ1

Short-Term High TemperatureQ1

Abstract

Organisms are often exposed to various stresses such as heat. The Diamondback moth, Plutella xylostella (L. ) (Lepidoptera: Plutellidae) is a serious pest of cruciferous crops in Iran and the world. The effect of short-term temperature stress on egg stage of P. xylostella and its demographic parameters were studied under laboratory conditions. Diamondback moth eggs were exposed to 30, 35 and 40 ° C for durations of 2, 4, 6, 8 h and then returned to normal temperature condition (25 ° C). The results showed that P. xylostella eggs successfully developed to adulthood at short-term (2, 4, 6 and 8 h) high temperatures stress. The ovipositional period was significantly longer at 30 ° C for 8 h, 35 ° C for 2 h and 40 ° C for 4 h than for other periods of stress. There is a significant difference in the net reproduction rate (R0) among the shortterm high temperature stresses treatments. The highest and lowest R0 was obtained at 30 ° C for 8 and 4 h, respectively. The intrinsic rate of increase (rm) was also found to be significantly affected by stress temperatures. The rmvalue ranged from 0. 15 ± 0. 009 (30 ° C for 4 h) to 0. 22 ± 0. 004 (35 ° C for 8 h). Knowledge of the effect of temperature on demographic parameters of P. xylostella could be useful in the integrated pest management for forecasting the population dynamics of this economic pest of brassicas, thereby reducing insecticide inputs, negative environmental impacts and saving hundreds of millions of dollars annually.

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APA: Copy

EBRAHIMI, NAJMEH, TALEBI, ALI ASGHAR, & FATHIPOUR, YAGHOUB. (2020). Effect of short-term high temperature stress on demographic parameters of Plutella xylostella (Lepidoptera: Plutellidae). JOURNAL OF CROP PROTECTION, 9(3 ), 507-522. SID. https://sid.ir/paper/239156/en

Vancouver: Copy

EBRAHIMI NAJMEH, TALEBI ALI ASGHAR, FATHIPOUR YAGHOUB. Effect of short-term high temperature stress on demographic parameters of Plutella xylostella (Lepidoptera: Plutellidae). JOURNAL OF CROP PROTECTION[Internet]. 2020;9(3 ):507-522. Available from: https://sid.ir/paper/239156/en

IEEE: Copy

NAJMEH EBRAHIMI, ALI ASGHAR TALEBI, and YAGHOUB FATHIPOUR, “Effect of short-term high temperature stress on demographic parameters of Plutella xylostella (Lepidoptera: Plutellidae),” JOURNAL OF CROP PROTECTION, vol. 9, no. 3 , pp. 507–522, 2020, [Online]. Available: https://sid.ir/paper/239156/en

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