STUDY ON ECONOMIC INJURY LEVEL OF SUNN PEST (EURYGASTER INTEGRICEPS PUT.) ON WHEAT IN RAINFED REGIONS OF KERMANSHAH PROVINCE

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BAHRAMI N.; RADJABI GH.; REZABEYGI M.; KAMALI K.

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Journal: Applied Entomology and Phytopathology Year:2003 | Volume:70 | Issue:2 Page(s): 29-45

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Title

STUDY ON ECONOMIC INJURY LEVEL OF SUNN PEST (EURYGASTER INTEGRICEPS PUT.) ON WHEAT IN RAINFED REGIONS OF KERMANSHAH PROVINCE

Author(s)

BAHRAMI N. | RADJABI GH. | REZABEYGI M. | KAMALI K. | Issue Writer Certificate

Keywords

SUNN PESTQ2

EWYGASTER INTEGRICEPSQ3

ECONOMIC INJURY LEVELQ3

WHEATQ2

KERMANSHAHQ2

Abstract

In order to determine the ECONOMIC INJURY LEVEL (ElL) of SUNN PEST (Eurygaster integriceps) in the cereal fields, two groups of studies were carried out in three regions of KERMANSHAH province, namely: Droofaraman, Mahidasht and Dizgaran.During two consecutive years (1996-1998), 25 fields were selected in abovementioned regions. Investigation and sampling initiated as soon as the first migration of hibernating individuals to the cereal fields occurred, involving the determination and the evaluation of the injuries.Average density of hibernated adults has been found to be around 3.3 bugs per square meter. Each hibernated adult has proved to be able to destroy 61 central shoots along with 12.2 white heads, resulting in 126 kg yield reduction in one hectare. ElL for the hibermited adults has been estimated to be 1.30 and 1.65 individuals per square meter in two consecutive years. The density of the progenies including the various stages of nymphs and the new adults has been found to be 30 per square meter. Each individual from new generation was able to infest 0.5% of kernels at the time of physiological seed maturity and 0.7 % at the traditional harvesting time. ElL for the nymphs has been estimated to be 4 and 2.8 individuals per square meter at the physiological seed maturity and harvesting time respectively.

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APA: Copy

BAHRAMI, N., RADJABI, GH., REZABEYGI, M., & KAMALI, K.. (2003). STUDY ON ECONOMIC INJURY LEVEL OF SUNN PEST (EURYGASTER INTEGRICEPS PUT.) ON WHEAT IN RAINFED REGIONS OF KERMANSHAH PROVINCE. APPLIED ENTOMOLOGY AND PHYTOPATHOLOGY, 70(2), 29-45. SID. https://sid.ir/paper/13222/en

Vancouver: Copy

BAHRAMI N., RADJABI GH., REZABEYGI M., KAMALI K.. STUDY ON ECONOMIC INJURY LEVEL OF SUNN PEST (EURYGASTER INTEGRICEPS PUT.) ON WHEAT IN RAINFED REGIONS OF KERMANSHAH PROVINCE. APPLIED ENTOMOLOGY AND PHYTOPATHOLOGY[Internet]. 2003;70(2):29-45. Available from: https://sid.ir/paper/13222/en

IEEE: Copy

N. BAHRAMI, GH. RADJABI, M. REZABEYGI, and K. KAMALI, “STUDY ON ECONOMIC INJURY LEVEL OF SUNN PEST (EURYGASTER INTEGRICEPS PUT.) ON WHEAT IN RAINFED REGIONS OF KERMANSHAH PROVINCE,” APPLIED ENTOMOLOGY AND PHYTOPATHOLOGY, vol. 70, no. 2, pp. 29–45, 2003, [Online]. Available: https://sid.ir/paper/13222/en

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