印度棗柑桔葉蟎之發生及藥劑防治

Abstract

柑桔葉蟎(Panonychus citri (Mc Gregor))為本省南部印度棗主要害蟎，全年當中除了3月至4月中旬受棗樹修枝、嫁接外均有發生，於乾旱季節（10~12月）發生最嚴重。發現其天敵有羅氏小黑瓢蟲(Stethours loi Sasaji)、鄭氏小黑瓢蟲(Stethorus chengi Sasaji)、小黑隱翅蟲(Oligota oviformis (Casey))、廣島氏小黑瓢蟲(Stethorus hiroshimai Sasaji)、黃偽瓢蟲(Saula japonica Gorham)、及溫氏捕植蟎(Amblyseius womersleyi Schicha)，其中以羅氏小黑瓢蟲及溫氏捕植蝸出現頻度較高。Citrus red mite (Panonychus citri (McGregor)) is one of the destructive pests on Indian jujube in the southern part of Taiwan and occurrs all year round especialily during the dry seasons (from October to January) except prune and graft periods (from March to the middle of April).