Vol. 6, Issue 6 (2018)
To study seasonal incidence of guava fruit fly, Bactrocera spp. and its impact on yield
Author(s): Umesh, Dr. Rajesh Kumar and Gaurav Kant
Abstract: The present study entitled “Seasonal incidence of guava fruit fly, Bactrocera spp. and its management through methyl eugenol traps†were carried out during both rainy and winter season at farmer’s field at village Sunderpur, District Rohtak, Haryana during 2016-17. The maggot population of guava fruit fly, Bactrocera spp. started appearing from 29 th SMW (4.8 maggots/infested fruit) reaching its maximum in 31st SMW (32.3 maggots/infested fruit). During winter season, the maggot population was at its peak during 44th SMW (12.1maggots/infested fruit) which went on decreasing till 48th SMW (1.12 maggots/infested fruit). There was no maggot population from 49th to 9th SMW. During termination phase of winter crop season, a low maggot population i.e. 2.29 and 3.31 maggots/infested fruit were recorded in 10th and 11th SMW, respectively. The fruit infestation in rainy season guava due to fruit fly ranged from 60 to 90 per cent on number basis while 53.49 to 87.20 per cent on weight basis, being highest during 31st SMW and lowest during 36 th SMW both on number and weight basis. During winter season guava, the highest fruit infestation due to fruit fly i.e. 26.67 and 22.43 per cent on number and weight basis, respectively was recorded during 44th SMW. There was no fruit infestation from 51st to 8th SMW. There was 68.53 per cent reduction in yield of guava in rainy season due to guava fruit fly, Bactrocera spp. As compared to 5.49 per cent in winter crop season with an overall yield reduction of 37.54 percent.
Pages: 1018-1020 | 580 Views 165 Downloads
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How to cite this article:
Umesh, Dr. Rajesh Kumar, Gaurav Kant. To study seasonal incidence of guava fruit fly, Bactrocera spp. and its impact on yield. Int J Chem Stud 2018;6(6):1018-1020.
