稻細蟎藥劑防治試驗

Screening of Chemicals for the Control of Rice Tarsonemid Mite, Steneotarsonemus spinki

羅幹成(Kang-Chen Lo) ； 何琦琛(Chyi-Chen Ho) ； 林國欽(Kuo-Chin Lin)

《中華農業研究》 30卷3期 (1981/09) Pp. 303-307

https://doi.org/10.29951/JARC.198109.0011

摘要

於溫室內種植臺南5號水稻，於分蘗盛期人爲接種稻細蟎(Steneotarsonemus spinki)500 頭／叢，孕穗初期分別施以5種農藥，每處理2重複，未施藥者爲對照，每隔10日施藥1次，共施藥3次。於第一次施藥前及第三次施藥後至齊穗期分別調查稻細蟎數，至收穫時調查不稔率、穗重、千粒重、穗頸長及穗頸扭曲度等。結果顯示Ethyl-parathion與Dicofol對稻細蟎效最優，防治率分別達99.9及97.0%，不稔率分別爲7.3及7.7%；而Azomite、Diazinon與MIPC之防治率分別爲79.5、82.9及45.00/0，不稔率分別爲13.5、21.3及39.8%；而對照組之不稔率則高達72.0%/，又因Ethyl-Parathion對人畜及天敵毒陸劇烈，故擬推薦Dicofol防治稱細蟎。

並列摘要

The effects of parathion, dicofol, azomite, diazinon and MIPC in the control of the rice tarsonemid mite, Steneotarsonemus spinki (Acarina Tarsonemidae), were compared in the greenhouse. The results of parathion and dicofol demonstrated that both chemicals were very effective in controlling the rice tarsonemid mites with the control rate at 99.9 to 97% and the sterility of rice at 7.3 to 7.7%. The results of other three pesticide treatments was rather poor, the mite control rates were ranged from 82.9 to 45.0% and the sterilities of rice were ranged from 13.5 to 39.8%. The check plots showed a thirty-four times increase in mite numbers from the start to the end of this experiment and the sterility of rice was 72.0%.
We prefer to recommend dicofol for the rice tarsonemid mite control because parathion has high mammalian toxicity and undesirable side effects on beneficial species and non-target organisms.