Black Parlatoria, Parlatoria Zizyphus (Lucas)
Other Title
黑點介殼蟲
Journal
農業研究
Journal Volume
12
Journal Issue
2
Start Page
34
End Page
47
Date Issued
1963-06-05
Date
1963-06-05
Author(s)
Liang-Chuan Chang
Charles Chia-Chu Tao
張良傳
陶家駒
Abstract
The black Parlatoria, Parlatoria zyiphus (Lucas) was the most difficult to control by insecticides owing to its scale was so flat and firmly stick on the leaf, twig or fruit peel lack of effective parasitic wasps or other groups of natural enemies. in consequence of its infestation was severe over other scale insects infested at present. Therefore the writers reviewed and tried insecticlede control of this species, the results may be summaried in the following.
Species and its generic characters had been described and differences among other species belonging to the same genus were presented in the key. The hosts seemed to limit various varieties of Citrus only on this island.
It took 7 generations a year, morphology of each stage was briefly described. Durations of egg, 1st, 2nd, 3rd stadium, oviposition period and one generation were 2-4, 6-13, 13-30, 11-24, 7-18, 42-93 days respectively.
There were 4 species of parasitic wasps namely Ahytis chrysomphali (Mercet)
A. proclia (Walker), Aspidiotiphagus citrinus Craw and A. lounsburyi (Berlese and
Paoli) recorded but the percentage of parasitism was very low and not over 2%.
The morphology of each parasitic wasps was also briefly described.
1,1.25,1.5% of five sauces of summer oil, 2, 2.5, 3% of CPC summer oil, 0.015,
0.0375, 0.05, 0.10% dimethoate, 0.05, 0.1% malathion alone, 0.05% malathion plus 1% CPC summer oil, solvent less and solvent parathion 0.025, 0.5, 0.1%, 0.05, 0.1% lebaycid, folithion, dimecron, nuvan (DDVP) and gusathion, diazinon, nuvan (0.025% each extra) were teated in the field, Among them, only 0.05% parathion, dimethoate and 0.05% malathion plus 1% summer oil or 3% summer oil alone were good and the mortality of the adult was over 95% and could be accepted for recommenda-tion to control this species in Taiwan except parathion in present condition.
黑點介殼蟲 Parlatoria zizyphus ( Lucas）為目下本省最難防治之柑橘害蟲，因其介殼扁平，堅固枝，葉或果上，雖用力或經塗蠟手續，均不易擦去，寄生蜂亦難寄生，一年發生代數多達七代，疊積果皮，葉片或嫩枝上，不但有損外觀，果實不能出口或上市，且被害之枝葉，往往枯落，揖害不少。
防治方法：現用 1%夏油加用 0.05%馬拉松乳劑，或用 0.05%巴拉松防治，可以成功，但前者成本高而後者對使用者有危險。本文所述將市上現有之有機磷殺蟲劑，作一田間比較試驗，發現 0.05%大減速乳劑，可以代替極毒之巴拉松或與夏油加用馬拉松之煩，將來如能對於大減速作合理價格之調整，可資採用防治。
黑點介殼蟲之種屬特徵與其同屬共害柑橘之種類特點，黑點介殼蟲四種寄生蜂之種屬特徵與黑點介殼蟲之生活習性，地理分布均有扼要說明，末附參考文獻，可助經濟昆蟲學者不少參考之處。
Publisher
農業試驗所
Type
journal article
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