The red pumpkin beetle has been found to be widely distributed throughout all zoogeographic regions of the world except the Neoarctic and Neotropical regions and all over the SouthEast Asia, Africa, Mediterranean region towards the west and Australia in the East. It was also found to occur in Bangladesh,
The research activity was conducted in major intensive yard long bean growing areas, such as Chittagong hill tracts regions of Bangladesh to know the population dynamics and to develop sustainable & eco-friendly management techniques for controlling major insect pests of yard long bean during 2016 and 2017 cropping season in the farmers’ fields at three hill districts of Chittagong. The study was carried out following randomized complete block design (RCBD) having seven treatment combinations. Each treatment turned into replicated three (03) times. Results found that bean pod borer infestation on yardlong bean commenced from 2nd week of May while pod formation commenced after which gradually increased with the age of crop. During this period environmental temperature was gradually increased but rainfall was decreased. Among the treatments, T3 reduced the highest infestation of bean pod by 90.07% in Bandarban, 89.29% in Rangamati and 89.80% in Khagrachari over control, respectively. The highest pod yield (17.64 tha-1 in Bandarban, 15.14 tha-1 in Rangamati and 15.93 tha-1 in Khagrachari, respectively) throughout the season were achieved by the same treatment. So, spraying of voliam flexi 300SC @ 0.5 ml Liter-1 water at 10 days interval+hand collection & destruction of infested fruits and larvae+nappy trap (T3) is going to be the foremost effective treatment to control bean pod borer in the three hill districts of Chittagong, Bangladesh.
Mungbean is one of the important pulse crops in Bangladesh. More than 12 species of insect pests infest mungbean, among them flea beetle cause significant yield loss due to attack from seedling to vegetative stages. The experiment was conducted to find out tolerant and susceptible varieties of mungbean against flea beetle at the farmer’s field of Patuakhali, Bangladesh from January to April 2016. Results revealed that BARI Mung-4 had the lowest abundance of flea beetle while BINA Moog-7 and BARI Mung-6 had the highest flea beetle abundance. Among the tested all varieties, significantly the lowest number (1.33) of infested plant by flea beetle was recorded in BARI Mung-4 followed by BINA Moog-4 (1.51) and the highest number (2.54) of infested plant by flea beetle was in BARI Mung-6 followed by (2.42) BINA Moog-7. The lowest percentage of leaf area damaged was on BARI Mung-4 (5.37%) while the highest on BARI Mung-6 (11.33%). Population of flea beetle showed a positive correlation (R2= 0.019) with temperature and a negative correlation (R2= -0.01) with relative humidity. BARI Mung-6 produced highest yield while Patuakhali local Mung produced the lowest followed by BARI Mung-4. Among tested varieties BARI Mung-4 showed comparatively more tolerant against flea beetle and BARI Mung-6 produced maximum yield in spite of being susceptile to flea beetle.
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