(2019). Ecological Studies on some Insect Pests Caught by Light Traps at Mansoura District, Egypt. Journal of Plant Protection and Pathology, 10(11), 561-565. doi: 10.21608/jppp.2019.74665
. "Ecological Studies on some Insect Pests Caught by Light Traps at Mansoura District, Egypt". Journal of Plant Protection and Pathology, 10, 11, 2019, 561-565. doi: 10.21608/jppp.2019.74665
(2019). 'Ecological Studies on some Insect Pests Caught by Light Traps at Mansoura District, Egypt', Journal of Plant Protection and Pathology, 10(11), pp. 561-565. doi: 10.21608/jppp.2019.74665
Ecological Studies on some Insect Pests Caught by Light Traps at Mansoura District, Egypt. Journal of Plant Protection and Pathology, 2019; 10(11): 561-565. doi: 10.21608/jppp.2019.74665
Ecological Studies on some Insect Pests Caught by Light Traps at Mansoura District, Egypt
Experiments were carried out to study the population fluctuations of some insects infesting vegetables and field crops trapped by using light traps and the effect of some temperature and relative humidity on these insects during the two years of investigation at Mansoura region. The obtained results revealed that Agrotis spinifera Hbn. recorded six peaks all the year a round. These peaks were found in the 3rd week of March, in the 4th week of April, in the 2nd week of June, in last week of July, in the first week of September, and in the end of October, during the two years of study. Agrotis pronuba Led. and Syngrapha circumfelexa L. had four peaks per a year during the period of study. The data showed that Earias insoulana Boised. had five peaks all the year a round and Gryllotalpa africana Pal. recorded three peaks per year. Results indicated that the values of correlation coefficient of the relationship between the average temperature, relative humidity and the population fluctuation of these five insect speciesduring the two years of study, cleared that average temperature and relative humidity parameters exerted varied effect with a value ranged from slight to highly significant correlation during the period of study.
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