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Development of Integrated Management Proach Against Wax Apple Fruit Flies, Bactrocera Dorsalis (2018-2019)

G. M. M. Bari
Fruit Research Station, BARI, Rajshahi

M. A. Uddin
Fruit Research Station, BARI, Rajshahi

M. A. Rahman
Fruit Research Station, BARI, Rajshahi

Abstract/ Executive Summary:

Present studies were conducted at experimental farm of Fruit Research Station, BARI, Rajshahi during 2018-2019. An experiment was conducted to select fruit fly tolerant wax apple variety. Another separate experiment was laid out in RCBD design with three replications to develop cost effective guidelines for managing fruit fly infestation. Six treatment packages for litchi fruit borer including untreated control were undertaken, such as TI= Sanitation + Attract and kill lure method + Application of Soil recharge ; T2= Sanitation + Mass trapping with Methyl-eugenol Pheromone trap + Application of Soil recharge ; T3=Sanitation + Four Spray of chemical pesticide (Cypermethrin) at 10 days’ interval when mature stage of fruits; T4= Covering of fruit brunches with polythene bag and T5= Untreated control. Mancozeb was sprayed at flowering and at early ripening stages as common treatment for managing litchi mite and anthracnose disease. The results showed that fruit fly infestation was highest (50.6 %) in BARI Jamrul 1 followed by BARI Jamrul 3 whereas, least infestation was observed in Rajshahi local variety. Treatment, T₄(covering of fruit brunches with polythene bag) performed better results which reduced 90% over control. Highest yield (61.42 kg) was obtained from T_I (Sanitation + Attract and kill lure method + Application of Soil recharge) treated plant followed by T₃ (Sanitation + Four Spray of chemical pesticide (Cypermethrin) at 10 days’ interval when mature stage of fruits) treated plant. Treatment, T_I increased 72.33% healthy fruit yield followed by treatment,T₃ (70.20%) over control. Treatment, T₄might decline fruit yield.

Keywords: Wax jambu, Wax apple, Fruit, Litchi fruit, Polythene bag

Location: Fruit Research Station, BARI, Rajshahi, Bangladesh

Start Date: 00-00-2018

End Date: 00-00-2019

Program Area: Crop-Soil-Water Management

Commodity: Wax jambu

Objectives:

To standardize an integrated pest management (IPM) approach for managing B. dorsalis of wax apple fruit.

Methodology:

Present studies were conducted at experimental farm of Fruit Research Station, BARI, Rajshahi during 2018-2019. An experiment was conducted to select fruit fly tolerant wax apple variety. For litchi varietal susceptibility test, trees of three common cultivated varieties viz. BARI Jamrul 1, BARI Jamrul 3 and Rajshahi local with five replications were opened for fruit infestation up to harvest and were kept without any chemical treatment. After harvest, comparable data on fruit borer infestation were collected from 100 fruits from each replicated wax apple tree.

Another separate experiment was laid out in RCBD design with three replications to develop cost effective guidelines for managing fruit fly infestation. Six treatment packages for litchi fruit borer including untreated control were undertaken, such as TI= Sanitation + Attract and kill lure method + Application of Soil recharge ; T2= Sanitation + Mass trapping with Methyl-eugenol Pheromone trap + Application of Soil recharge ; T3=Sanitation + Four Spray of chemical pesticide (Cypermethrin) at 10 days’ interval when mature stage of fruits; T4= Covering of fruit brunches with polythene bag and T5= Untreated control. Mancozeb was sprayed at flowering and at early ripening stages as common treatment for managing litchi mite and anthracnose disease.

The damage was assessed based on the weight of total number of fruits and damaged fruits in the different treatments and the percent damage was worked out. The yield of litchi fruits was recorded from each plant on weight basis. Statistical analysis was carried out using Statistix 10 software programme.

Source of Information: Annual Research Report 2018-2019, Fruit Research Farm of HRC, BARI, Gazipur

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Fruit fly infestation was highest (50.6 %) in BARI Jamrul 1 followed by BARI Jamrul 3 whereas, least infestation was observed in Rajshahi local variety. Treatment, T₄(covering of fruit brunches with polythene bag) performed better results which reduced 90% over control. Highest yield (61.42 kg) was obtained from T_I (Sanitation + Attract and kill lure method + Application of Soil recharge) treated plant followed by T₃ (Sanitation + Four Spray of chemical pesticide (Cypermethrin) at 10 days’ interval when mature stage of fruits) treated plant. Treatment, T_I increased 72.33% healthy fruit yield followed by treatment,T₃ (70.20%) over control. Treatment, T₄ might decline fruit yield.

Knowledge Management: Report/Proceedings