The Effect of Meteorological Factors on the Population Dynamics of Melon fly, <i>Bactrocera cucurbitae</i> (Coq.) (Diptera: Tephritidae) in the foot hills of Himalaya

Abstract

An exhaustive approach had been undertaken to investigate the incidental pattern of Bactrocera cucurbitae (Coq.) (Diptera : Tephritidae) round the year with a view to formulate a sustainable management technique against the pest. Significant variation in occurrence of the pest was recorded during the period of investigation. Trapping of male melon fly was started from 01.10.2006 and continued up to 30.09.2008 by using sex attractant, Cuelure. During warm and rainy months (June, July, August, at 25-37 o C) the flies were more active as compared to that of dry and winter (December, January, February 8-23 o C) months. Significant positive correlation (r) of fly incidence was noted with minimum (r= +0.7596) and maximum temperature (r= +0.7376), whereas temperature gradient correlated negatively (r=-0.4789) with fly incidence. Negative correlation of fly incidence was also recorded with maximum humidity (r=-0.4249) and humidity gradient (r=-0.5481) and positive (r= +0.4366) with the minimum. Rainfall and sunshine hour per day showed positive (r= +0.4367) and negative (r=-0.3123) correlation with the fly incidence respectively. Regression equations of fly incidence with all the meteorological parameters were also determined. Results of the present investigation may be utilized in chalking out sustainable pest management strategy in the agro-ecological system under consideration. @ JASEM

Analysis of factors influencing population density of the peach fruit fly (PFF),Bactrocera zonata(Saunders) (Diptera: Tephritidae) in Assiut, Northern Upper Egypt

“…The results of our study are also in close agreement with the findings of Amin 2003; Abu-Manzar and Srivastava 2004;Robacker 2006;Chen and Ye 2007;Laskar and Chatterjee 2010 who reported that highest densities of fruit fly species occurred during the period of abundant mature fruits of their respective hosts. However, further studies are needed to determine the other factors other than fruit maturation affecting population fluctuations of PFF, particularly in Assiut Governorate.…”

Relationship between Population Fluctuation of Oriental Fruit Fly Bactrocera dorsalis Hendel and Abiotic Factors in Yezin, Myanmar

“…The result of present study was agreed with the observation of Laskar et al [30] who exhibited that total sunshine hour per day influence negatively on adult melon fly incidence. Shukla et al [19] also reported that the peak trap catches of Bactrocera dorsalis had a negative correlation with average number of day light hours.…”

“…had positive correlation with minimum temperature and maximum temperature. This finding was similar result of Laskar et al [30] who observed that the mean maximum, minimum temperature showed positive and significant correlation with the fruit fly catch per trap per day. Lui et al [31] reported that positive and highly significant correlation of Dacus zonatus incidence with minimum and maximum temperature.…”

Diversity and seasonal abundance of tephritid fruit flies in three agro‐ecosystems in Benin, West Africa

“…Dacus species (except D. humeralis ) and Z. cucurbitae were more active and peaked from October to January (warmer period of the year) in the three agro‐ecosystems. In contrast, D. humeralis peaked from May to August, which coincided with the rainy season when cucurbit crop production was high (see also Laskar & Chatterjee, ).…”

“…Among the weather variables used in this study, C. cosyra and C. quinaria populations were significantly and positively correlated with minimum, maximum and mean temperature, while populations of B. dorsalis , D. punctatifrons and Z. cucurbiatae were negatively correlated with the same variables. Laskar and Chatterjee () showed that Z. cucurbitae populations increased with increasing temperatures, especially during the hotter months of the year, while populations dropped at lower temperatures coinciding with the colder months. Bactrocera dorsalis and D .…”