scholarly journals Efficacy of management approaches against cucurbit fruit fly (Bactrocera cucurbitae coquillett) of bitter gourd

2018 ◽  
Vol 42 (4) ◽  
pp. 757-766 ◽  
Author(s):  
R Sarkar ◽  
S Das ◽  
MM Kamal ◽  
KS Islam ◽  
M Jahan

Field and laboratory studies were carried out to find out the extent of fruit fly infestation at different fruiting stages of bitter gourd as well as to determine the efficacy of some pesticidal and other control approaches applied either separately or in combination. The pesticidal efficacy of three commonly used insecticides such as secufon, malathion, karate and karanja oil as botanicals with the concentrations of 0.25%, 0.50%, 0.75% and 1.00% respectively was determined against the larvae of cucurbit fruit fly, Bactrocera cucurbitae in the laboratory based on mortality at different time intervals. All the pesticides caused maximum mortality at 72 h with 1.00% concentration. The level of fruit fly infestation at different fruiting stages of bitter gourd ranged from 8.91% to 88.19%, 9.24% to 94.89% and 5.01% to 89.27% at early, mid and late fruiting stage, respectively. Soil treatment with furadan @ 10kgha-1 + bagging of fruits showed significantly lowest infestation (9.46%) which was ten times lower than that of untreated control (91.43%). The other control approaches viz., sex pheromone, bait trap with secufon + cucurbit chop, bait trap consisted of secufon + banana chop reduced fruit fly infestation to a significant level. The highest number (83.67) of flies trapped at mid fruiting stage of bitter gourd was recorded in sex pheromone trap while the ratio of male and female flies ranged from 1.13 to 1.24 in the trapped individuals.Bangladesh J. Agril. Res. 42(4): 757-766, December 2017

ENTOMON ◽  
2018 ◽  
Vol 43 (4) ◽  
pp. 287-290
Author(s):  
Kishor Pujar ◽  
T. Elaiyabharathi ◽  
T. Kempraj ◽  
C. Kavitha

A low cost fruit fly trap was designed to attract the fruit flies with food baits. The preliminary field experiments were conducted for selecting the food bait and its concentration. A combination of 30 g of banana pulp + 3 ml of food grade alcohol selected and tested in gourds namely snake gourd (Trichosanthes anguina L.), ridge gourd (Luffa acutangula L.) and bitter gourd (Momordica charantia L.) in Coimbatore and Dharmapuri. The food bait attracted both sexes of B. cucurbitae with female: male ratio 0.78:1 and the cost of trap and food bait costs only 43 rupees per acre.


2019 ◽  
Vol 30 (2) ◽  
pp. 150-156
Author(s):  
MAU Alam ◽  
M Hossain ◽  
MI Mia ◽  
MAAH Talukder ◽  
MMU Haque ◽  
...  

A field experiment was conducted in the farmer’s field at Salaipur, Mithapukur, On Farm Research Division, Rangpur during 2015-2016to control cucurbit fruit fly effectively through the use of sex pheromone trap. The trial was conducted among six farmers. Three treatments viz., T1 (Sex pheromone + Poison bait + Sanitation (9 spot)), T2 (Sex pheromone + Poison bait + Sanitation (16 spot)) and T3 (Farmers practice) were compared.  The total land area was 7200m2. The higher fruit yield (63.99t/ha) was obtained from T2 (Sex pheromone + Poison bait + Sanitation (16 spot). The lower fruit yield (27.99 t/ha) was obtained from T3. The gross margin (Tk. 294706/ha) and gross return was also higher with the use of T2 (Sex pheromone + Poison bait + Sanitation (16 spot).The highest gross margin and gross return was found in T2 (Sex pheromone + Poison bait + Sanitation (16 spot) treatment. Use of insect lures can improve safe vegetable production as well as yield. Innovative agricultural technologies have the potential to increase yield and income of smallholder vegetable farmers in the northern region of Bangladesh. Progressive Agriculture 30 (2): 150-156, 2019


2017 ◽  
Vol 9 (2) ◽  
pp. 217
Author(s):  
Paras Nath ◽  
A. K. Pandey ◽  
Akilesh Kumar ◽  
A. B. Rai ◽  
Hemalatha Palanivel

Host plant resistance is a key factor for management of the melon fruit fly, Bactrocera cucurbitae (Coquillett), due to difficulties associated with its chemical and biological control. Various biochemical traits including total sugars, reducing sugars, non-reducing sugars, silica, protein content, ash content, other elements and phenols, and moisture content of fruit were studied on 74 varieties/genotypes of bitter gourd (Momordica charantia L.), in relation to resistance against B. cucurbitae under field conditions. Seventy-four genotypes of bitter gourd were screened against fruit fly infestation. The correlation coefficients revealed that the larval density and bitter gourd fruit damage (%) had significant positive relationship (r = 0.99). The moisture content had significant positive effect on the fruit damage (r = 0.75) and number of larvae per fruit (0.80). Significant differences were found in tested varieties/genotypes for fruit infestation and larval density per fruit. The nitrogen, phosphorous, potassium and protein content (r = -0.87, -0.90) showed significant negative correlation with fruit fly infestation. The non-reducing, reducing, total sugars, total phenols, silica and ash content had significant impact on the fruit damage and showed significant negative correlation with fruit fly infestation. The ascorbic acid also had significant impact on the fruit damage and showed significant negative correlation with fruit fly infestation (r = -0.79), the chlorophyll ‘a’, ‘b’ and total chlorophyll content had non-significant negative effect on the fruit damage and number of larvae per fruit.


2019 ◽  
Vol 30 (2) ◽  
pp. 173-178
Author(s):  
M Hossain ◽  
MI Mia ◽  
MAAH Talukder ◽  
UK Laily ◽  
MMU Haque ◽  
...  

A field experiment was conducted in the farmer’s field at Salaipur, Mithapukur, OFRD, Rangpur during 2015-2016 to control cucurbit fruit fly effectively through the use of sex pheromone trap. The trial was conducted among six farmers. Three treatments viz., T1 (Sex pheromone+Poison bait+Sanitation (9 spot)), T2 (Sex pheromone+Poison bait+Sanitation (16 spot)) and T3 (Farmers practice) were compared. The total land area was 7200m2. The higher fruit yield (25.86 t/ha) was obtained from T2 (Sex pheromone+Poison bait+Sanitation (16 spot). The lower fruit yield (21.43 t/ha) was obtained from T3. The gross margin (Tk.96375/ha) and BCR (3.92) was also higher with the use of T2 (Sex pheromone+Poison bait+Sanitation (16 spot). The findings related to control of fruit fly of sweet gourd will be an important role in pest management safely and it will be play important for farmer’s profitability. Progressive Agriculture 30 (2): 173-178, 2019


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