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Farmers' Perception on Jackfruit Borer, (diaphania Caesalis) and Its Management

A.K.M.Z. Rahman
Scientific Officer
Entomology Division, Bangladesh Agricultural Research Institute, BARI, Gazipur-1701

M. A. Maleque
Scientific Officer
Entomology Division, Bangladesh Agricultural Research Institute, BARI, Gazipur-1701

S.N. Alam
Senior Scientific Officer
Entomology Division, Bangladesh Agricultural Research Institute. BARI, Gazipur-1701

A. K. M. Khorsheduzzaman
Scientific Officer
Entomology Division, Bangladesh Agricultural Research Institute, BARI, Gazipur-1701

M. Nasiruddin
Chief Scientific Officer
Entomology Division, Bangladesh AgricuLtural Research Institute. BARI. Gazipur-1701

Abstract/ Executive Summary:

A survey on management of jackfruit borer was conducted during 2002 to 2004 at Gazipur and Dhaka district. Under Gazipur, the highest fruit infestation was recorded at Joydebpur (30.87%) in 2002 and at Kapasia (32.94%) in 2003. In both the seasons, The lowest infestation was in Sreepur ranging from only 8.17 to 15.91 %. In both the seasons, Joydebpur farmers were found as the most conscious about the attack of jackfruit borer (100% in 2002 and 93.33% in 2003). At 30 days after fruit setting (DAFS), the fruit infestation was the lowest (3.7%) while the infestation reached its peak (11.44%) at 60 DAFS. Sixty days after fruit setting, fruit infestation level again declined slowly to 9.29% at 90 DAFS and 8.25% at 120 DAFS. The lowest infestation was obtained from Neem oil (@ 20 ml/l + Trix 5 mI/l) treated fruits and no significant difference was observed from Dimethoate (@ 2.5 mI/l) treated fruits.

Keywords: Jackfruit borer, Survey, Management

Location: Savar in Dhaka, Joydebpur, Kapasia and Sreepur of Gazipur.

Start Date: 00-00-2002

End Date: 00-00-2004

Program Area: Pest Management

Commodity: Jackfruit

Objectives:

To study the farmers' idea on jackfruit borer, the pest status of jackfruit borer and its management.

Methodology:

One hundred plants were randomly selected from each location of Savar in Dhaka, Joydebpur, Kapasia and Sreepur of Gazipur for the study. In a fruiting season (Kharif-1), a total of 4 obser Dations were made from each location. The first observation on borer infestation was made at 30 days after fruit setting (DAFS), the second at 60 DAFS, the third at 90 DAFS and the fourth at 120 DAFS. Data of four such observations were pooled and the mean was calculated. In case of direct count, data on healthy and infested fruits were calculated from the total number of fruits of each plant. A total of randomly selected 25 jackfruit growers were interviewed from each location to understand their views on the jackfruit borer. A total of 4 observations were made at 30, 60, 90, 120 DAFS, as with the dates of observations for collecting infestation data on jackfruit borer through direct count. One set of objective- oriented questionnaire was provided to each jackfruit grower to collect views on the infestation status of jackfruit borer and how many farmers among the interviewees (25 farmers per replication) knew earlier about the jackfruit borer infestation in the year of 2002 and 2003. Twenty five farmers gave their observations on how many fruits were infested among the total fruits in 2002 and 2003 in their own orchard. This was done to determine the per cent borer infestation under their observation. Data of four observations were pooled and mean was calculated.

Source of Information: The Agriculturists, Vol: 3, (No-1&2), pp: 144-148, ISSN-1729-5211, Dec 2005

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

From two years study it was revealed that the jackfruit borer infestation could vary from plant to plant even in the same location. To manage this pest Neem oil @ 10 ml/l+ Trix 5 ml/l of water may be used from the environmental point of view. Dimethoate @ 2.5 ml/l of water may be applied as the second option for jackfruit borer management.

Knowledge Management: Journal