International Journal of Current Microbiology and Applied Sciences | 2019
Comparative Biology of Fruit Fly, Bactrocera dorsalis (Hendel) on Mango Genotypes
Abstract
The oriental fruit fly Bactrocera dorsalis (Hendel), first reported in Taiwan Island, is one of the most destructive pests of fruits and vegetables around the world, causing huge economic losses (Wei et al., 2017) and is a serious pest on a wide range of fruit crops in the Indian subcontinent. It is endemic to Southeast Asia, but has also been introduced to various region of the world and became threats to the wide range of cultivated and wild fruits (Drew and Raghu, 2002). Bactrocera dorsalisis reported to cause 100.0, 87.0, 78.0 and 61.0% fruit damage in rainy season on guava, mango, peach and pear respectively (Sharma et al., 2011). Whereas Singh (2010) reported significant losses in Kinnow due to fruit flies. Mango (Mangifera indica L.) belongs to family Anacardiaceae is one among the important fruit crops grown in the world. It is cultivated in most of the Investigation was undertaken at Department of Entomology, College of Agriculture, Dharwad (Karnataka) during 2018-19 to understand the biology of Bactrocera dorsalis (Hendel) on different mango genotypes under laboratory condition. The data on comparative biology of B. dorsalis on different genotypes inferred that, the minimum incubation period of 1.5 days was noticed on Alphonso, whereas, it was maximum on Dasheri (3.5days). The minimum maggot period of 7.8 days was noticed on Benishan, whereas, it was maximum on Dasheri (11.3days). The minimum pupal period was recorded on Benishan (10.3 days), while it was maximum of 12.6 days on Dasheri. Among the eight genotypes the adult male longevity was recorded on Benishan and female on Alphonso i.e. (20.6 and 23.9 days) Minimum male and female longevity was on Dasheri (18.3 and 20.4 days). The total development period was significantly highest on Dasheri (27.5 days) and it was found to be minimum on Benishan (19.8 days). The maximum mean fecundity was 189.5 eggs per female on Benishan whereas, minimum with 132.7 eggs per female on Dasheri genotype. K e y w o r d s