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黑蚱蟬在我县过去多见其危害林木,柑桔上偶见个别枝条因成虫产卵造成的“爪”状卵窝而枯死的小枝。1989年6-8月此虫发生严重,睛天,房前、屋后、道旁绿化林木蟬鸣震耳欲聋,直至9月上旬仍有蟬鸣声,道旁树上虫蜕到处可见。本所柑桔园因其成虫产卵造成枯枝的株被害率达20—30％。尤其是下洋一片600多株7年生的柑桔几乎每株都有被害造成的枯枝2—3枝,个别株达5—6枝。 黑蚱蟬为害柑桔除了以雌成虫产卵蛀伤树枝,被害枝条多数枯死外,还以若虫入土吮
Black cicada cicadas in our county in the past to see more of its harmful trees, orange occasionally sporadic branches because of adult eggs caused by the “claw” shaped ovary and dead branchlets. From June to August 1989, the worm was severely affected, with eyesighting, houses, houses and trees beside the green cicadas deafening. There was still a cicadas whistling in early September, and insects were shed everywhere on the roadside trees. The citrus orchard due to its adult spawning caused by the strain of dead branches of 20-30%. Especially under the ocean a more than 600 strains of 7-year-old citrus almost every plant has been killed caused by twigs 2-3, individual strains up to 5-6. Black grasshopper damage citrus addition to the female adult spawning wounds branches, the majority of killed branches dead, but also nymphs into the soil sucking