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一、云斑天牛 BatoceraHorsfield.(Hope)云斑天牛是油橄榄的主要害虫之一,我所在两千多株大树中,每年观察到的产卵孔有700～1000个左右,个别受害重的植株上有产卵孔56个,被害植株如不及时防治,往往整株死亡。由它造成的伤口,也易被病菌侵入,引起木质部腐朽,变成弱株,易受风折。云斑天牛在桂林的主要寄主植物是:桃、李、枇杷、桑、柑桔等。成虫在五月初开始出现。初羽化的成虫,白天蛰伏于树冠,晚上活动,啃食
One, BatoceraHorsfield. (Hope) One of the main pests of Olea europaea, I am more than two thousand trees, the annual observed oviposition holes about 700 to 1000, the individual victims Of the plants have spawning holes 56, killed plants, if not timely control, often the whole plant died. Wound caused by it, but also vulnerable to invade bacteria, causing xylem decay, into a weak strain, susceptible to wind break. The main host plants of the spotted beetle in Guilin are: peach, plum, loquat, mulberry, citrus and so on. Adults began to appear in early May. The first emergence of adults, the dormant during the day in the crown, activities at night, eating