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1963年10月间,我们在浙江省平阳县良种繁育场四周的苦楝树上,发现有黑尾叶蝉集聚为害。未见在杂草上有黑尾叶蝉。 黑尾叶蝉为害苦楝树,为害状与水稻一样,形成白色斑点,连结成条状,并使叶子形成黄驳斑,提早衰落。根据文献记载:浙江省黑尾叶蝉在紫云英和杂草上越冬,在苦楝树上还未发现;现根据我站的观测,10月间在水稻黄熟期,平均每张苦槐树叶片有5—8只成、若虫。11月初,随着苦楝树的叶子枯黄,紫云英的发芽出土,苦楝树上虫口下降,平均每张叶片为2—3只,紫云英上虫口逐日增加。因此,我们认为,黑尾叶蝉在苦楝树上是一种中间寄主,是水稻黄熟期到紫云英出土前的中间桥梁。
In October 1963, on the neem tree around the fine breeding farm in Pingyang County, Zhejiang Province, we found that the black-tailed leafhopper gathered for harm. No weed on the black leafhopper. Nephotettix cincticeps damage Neem tree, the damage like rice, the formation of white spots, linked into a strip, and make the formation of yellow barbed leaves, premature decline. According to the literature, it is found that Nephotettix cincticelli in Zhejiang Province passes through the winter in the vermilion and weeds, but has not yet been found in Neem tree. According to the observations of our station, in the yellow ripening stage of rice in October, 8 as, nymphs. In early November, with the leaves of the neem tree yellow, the germination of the milk vetch is unearthed, the population of neem on the neem tree drops, with an average of 2-3 per leaf. Therefore, we think that Nephotettix cincticeps is an intermediate host in Melia azedarach, which is the middle bridge between the Huang ripening stage of the rice and the argillaceous.