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危害状况柑桔锈壁虱是近几年来柑桔生产上的一个大敌,它严重地影响着我场柑桔产量和品质的提高。 1970年,我场柑桔锈壁虱自七月下旬开始迅速发生,八、,九月继续迅速发展,十月速度变慢;全场402亩柑桔园都受危害。但平地和半山腰以下的山脚柑桔园较严重,半山腰以上的山地柑桔园则危害较轻。就品种来说,每个品种都有发生,尤以无核桔(温州蜜柑)、早桔、朱红、日向夏蜜柑、金坩、刘勤光、脐橙为重,世界蜜柑(柚橙)、本地早、有柑、槾桔为次,
Harm status Citrus rust tick is an enemy of citrus production in recent years, it seriously affects my field citrus yield and quality improvement. In 1970, citrus rust ticks in my field began to rapidly occur in late July. In August and September, the rapid development continued to slow down in October. The whole 402-acre citrus orchard was endangered. But the foot of the mountain and the foot of the citrus orchard below the hillside is more serious, mountainous citrus orchard above the hillside is less harmful. In terms of breed, each breed has occurred, especially the seedless orange (Satsuma), early orange, vermilion, summer mandarin, golden crucian, Liu Qinuang, navel orange, There are oranges, oranges for the times,