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EL-KHOULY,, A., HUSSAIN, A., SHALABY, H., OUDA, M. (2017). THERMAL CONSTANT AND DEGREE-DAY REQUIREMENTS FOR THE DEVELOPMENT OF THE TOMATO BUG, NESIDIOCORIS (CYRTOPELTIS) TENUIS (REUTER). Egyptian Journal of Agricultural Research, 95(3), 1099-1105. doi: 10.21608/ejar.2017.149592
ABED EL MONEM S. EL-KHOULY,; ABED RABO E. HUSSAIN; Hassan H. SHALABY; MOHAMED I. OUDA. "THERMAL CONSTANT AND DEGREE-DAY REQUIREMENTS FOR THE DEVELOPMENT OF THE TOMATO BUG, NESIDIOCORIS (CYRTOPELTIS) TENUIS (REUTER)". Egyptian Journal of Agricultural Research, 95, 3, 2017, 1099-1105. doi: 10.21608/ejar.2017.149592
EL-KHOULY,, A., HUSSAIN, A., SHALABY, H., OUDA, M. (2017). 'THERMAL CONSTANT AND DEGREE-DAY REQUIREMENTS FOR THE DEVELOPMENT OF THE TOMATO BUG, NESIDIOCORIS (CYRTOPELTIS) TENUIS (REUTER)', Egyptian Journal of Agricultural Research, 95(3), pp. 1099-1105. doi: 10.21608/ejar.2017.149592
EL-KHOULY,, A., HUSSAIN, A., SHALABY, H., OUDA, M. THERMAL CONSTANT AND DEGREE-DAY REQUIREMENTS FOR THE DEVELOPMENT OF THE TOMATO BUG, NESIDIOCORIS (CYRTOPELTIS) TENUIS (REUTER). Egyptian Journal of Agricultural Research, 2017; 95(3): 1099-1105. doi: 10.21608/ejar.2017.149592

THERMAL CONSTANT AND DEGREE-DAY REQUIREMENTS FOR THE DEVELOPMENT OF THE TOMATO BUG, NESIDIOCORIS (CYRTOPELTIS) TENUIS (REUTER)

Article 6, Volume 95, Issue 3, September 2017, Page 1099-1105  XML PDF (499.56 K)
Document Type: Original Article
DOI: 10.21608/ejar.2017.149592
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Authors
ABED EL MONEM S. EL-KHOULY,1; ABED RABO E. HUSSAIN1; Hassan H. SHALABY2; MOHAMED I. OUDA3
1Department of Plant Protection, Faculty of Agriculture. Al- Azhar University, Nasr City, Cairo, Egypt.
2Plant Protection Research Institute, ARC, Giza, Egypt.
32- Plant Protection Research Institute, ARC, Giza, Egypt.
Abstract
development of the tomato bug Nesidiocoris (Cyrtopeltis) tenuis (Reuter) (Heteroptera: Miridae) was studied at constant temperatures (15, 20, 25 and 30 ̊C ±1 ̊C). Development of immature stages was accelerated by raising of tested temperatures. Total averaged of developmental period was (76.13, 45.27, 26.73 and 20.93 days) at 15, 20, 25 and 30 ̊C; respectively. Generation period ranged between 93.50 and 22.80 days depending on rearing temperature. Addionally, adult female survived slightly longer than male; also, fecundity was higher at lower temperature (15 ̊C) than higher one (30 ̊C). Thermal constant or threshold of development (to), Thermal requirements (K) and degree- days (d. d. 's) were estimated to be 12.4, 7.8 and 9.9 ̊C for egg, nymph and all immature stages, respectively. Based on 30 ̊C estimation (preferred temperature), 107.83, 325.46 and 417.30 heat units (U.T.) are required for completion the development of egg, nymph and all immature stages. Development of one generation may require 440.29 degree-days.
Keywords
CONSTANT AND DEGREE-DAY; TOMATO BUG
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