Abstract
ABSTRACT The present research investigations were carried out on monitoring the population of bark beetle, Hypocryphalus mangiferae(Stebbing) on mango trees through installation of sticky color traps at different heights of mango tree. The results revealed that maximum monthly mean number of adult beetles (507.91) was recorded on green plastic traps followed by 261.75 beetles on black traps, 215.75 beetles on white traps, 109.83 beetles on red traps, 83.75 beetles on blue traps, and 77.75 beetles on yellow traps. With regards to number of bark beetles on color traps at different heights, the maximum monthly mean number of the beetles (429.83) was recorded at height of 1 above ground level followed by 416.00 beetles at 3′level, 334.08 beetles at 6′and 76.83 beetles at 9′level. The results further revealed that the bark beetle population remained higher from February 2006 to June 2006. The mean temperature for that period ranged between 23.12 to 33.46°C with 48.57 to 76.00% RH.
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