https://scholars.tari.gov.tw/handle/123456789/21371
Title: | Evaluation of Feeding and Ovipositing Responses of Three Phytoseiid Mites to Amounts of Kanzawa Spider Mite Eggs (Acari: Phytoseiidae, Tetranychidae) | Other Titles: | 三種捕植蟎對不同數量葉蟎的取食與產卵反應評估 | Authors: | Chyi-Chen Ho Wen-Hua Chen 何琦琛 陳文華 |
Keywords: | phytoseiid;response;food amount;捕植蟎;反應;食物量 | Issue Date: | Sep-1999 | Publisher: | 中華昆蟲學會 | Journal Volume: | 19 | Journal Issue: | 3 | Start page/Pages: | 257-264 | Source: | 中華昆蟲 | Abstract: | Amblyseius womersleyi Shicha is common in Taiwan and feeds on spider mites, providing good control of Tetranychus kanzawai Kishida. A. fallacis (Garman) and Phytoseiulus persimilis Athias-Henriot were exotic phytoseiids imported from the United States and/or Australia to Taiwan for the control of T. urticaeKoch. To compare their abilities to control spider mites, daily food consumption and fecundity of these phytoseiids when provided with 0, 2, 5, 10, 20, 40, 80, 120 Kanzawa spider mite eggs were studied at 28 ℃ and a photoperiod of 13:11 (L: D) in an incubator. These predators responded differently to food availability. With a food supply as low as 2 spider mite eggs per day, A. womersleyi would remain on the leaf disc and finish the food; A. fallacis tended to finish the food and leave; while P. persimilis might have left without feeding. Escape behavior of A. fallacis and P. persimilis decreased after 10 or more spider mite eggs were provided daily. With a supply of 20 or more spider mite eggs, P. persimilis ate more than the others did. A. womersleyi and A. fallacis reached their normal fecundity after 20 or more spider mite eggs were provided per day, indicating that this is likely to be their daily food requirement. P. persimilis reached normal fecundity after 40 spider mite eggs were supplied daily. Its daily food requirement is probably around 30 spider mite eggs. Supplied with 120 spider mite eggs daily, fecundity of all three predators significantly decreased. Compared with P. persimilis, A. womersleyi and A. fallacis can be released into lower spider mite densities. A. womersleyi would stay, feed, and oviposit with low food amounts; it feeds more than A. fallacis does when food is plenty, and is prevalent in Taiwan. More studies should be carried on the utilization of this mite in spider mite IPM systems. 溫氏捕植蟎(Amblyseius womersleyi Schicha)普遍發生於臺灣各地,捕食葉蟎,對神澤氏葉蟎(Tetranychus kanzawai Kishida)有良好的防治效果。法拉斯捕植蟎(A. fallacis (Garman))及智利捕植蟎(Phytoseiulus persimilis Athias-Henriot)為自美國以及澳洲引進的外來種類,引進目的在防治二點葉蟎(T. urticae Koch)。為比較此3種捕植蟎對葉蟎的抑制能力,本試驗觀察定溫箱中28℃、13:11(L: D)光週期下,每日供給0、2、5、10、20、40、80、120粒神澤氏葉蟎卵時,3種捕植蟎的捕食量、產卵量。三種捕植蟎對食物量的反應不一,低如每日2粒葉蟎卵即可使溫氏捕植蟎停留於葉片,將食物吃光﹔法拉斯捕植蟎傾向於吃完後離去﹔智利捕植蟎則可能不吃即離去。供給10粒或更多葉蟎卵時,法拉斯捕植蟎及智利捕植蟎才有相當的安定性。供食超過20粒葉蟎卵後,智利捕植蟎食量躍升3者之冠,溫氏捕植蟎次之,法拉斯捕植蟎最少。自產卵量來看,溫氏捕植蟎及法拉斯捕植蟎每日有20粒葉蟎卵即正常產卵,其每日所需食物量約為20粒葉蟎卵﹔智利捕植蟎則在每日供40粒葉蟎卵時才達應有產卵量,其每日食物需求可能為30粒葉蟎卵左右。供食120粒葉蟎卵時,產卵量均顯著有下降情形。缺乏食物時,三種捕植蟎均迅速離去。與智利捕植蟎相較,溫氏捕植蟎及法拉斯捕植蟎可在較低葉蟎密度時釋放。溫氏捕植蟎在低食物量時即能定著而取食、產卵,食物豐足時的取食量優於法拉斯捕植蟎,又普遍存在於台灣,應探討其在IPM系統中的應用價值。 |
URI: | https://scholars.tari.gov.tw/handle/123456789/21371 https://tpl.ncl.edu.tw/NclService/JournalContentDetail?SysId=A99023363 |
ISSN: | 0258-462X | DOI: | https://doi.org/10.6660/TESFE.1999022 |
Appears in Collections: | (5)應用動物組 |
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