Functional and numerical responses are influenced by the feeding experience of Neoseiulus cucumeris (Acari: Phytoseiidae)

IF 1.3 3区农林科学 Q2 ENTOMOLOGY

Systematic and Applied Acarology Pub Date : 2023-04-21 DOI:10.11158/saa.28.4.7

Shima Yazdanpanah, Y. Fathipour

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引用次数: 0

Abstract

Abstract Neoseiulus cucumeris (Oudemans) is a commercially available biocontrol agent against various pests. This generalist predator was reared on cattail pollen for 10 generations (G10) and its quality was evaluated using functional and numerical responses to Tetranychus urticae Koch nymph densities as prey. The experiments were conducted by offering a range of prey densities (2, 4, 8, 16, 32, 64, and 128 nymphs) under standard conditions (25 ± 1°C, 60 ± 5% RH, and a photoperiod of L16:D8 h). The predator exhibited a type III functional response after ten generations of rearing on cattail pollen (G10), while it was type II when the predator had no experience with pollen (G0). The highest estimated maximum predation rate (T/Th) was in G0 (127 prey/day), and the lowest was in G10 (85 prey/day); while, the observed maximum predation rate (OMPR) in the mentioned generations was 67 and 84 prey/day, respectively. The number of prey consumed and the number of eggs laid by the predator in G10 was significantly more than G0. The effects of predator's generation, prey density, and their interaction on predation and oviposition rate (on T. urticae) were statistically significant. Therefore, because of the higher predation and oviposition rate, and efficient quality of mass-reared predators on cattail pollen, it is proposed that this pollen can be an appropriate food source for mass rearing of N. cucumeris.

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功能和数量反应受新冠虫（Acari：Phytoseidae）进食经验的影响

摘要黄瓜新梢虫（Neoseulus cucumeris，Oudemans）是一种商业上可买到的防治各种害虫的生物防治剂。这种多面手捕食者在香蒲花粉上饲养了10代（G10），并使用对二斑叶螨Koch若虫密度的功能和数量反应来评估其质量。实验是通过在标准条件下（25±1°C，60±5%相对湿度，光周期L16:D8小时）提供一系列猎物密度（2、4、8、16、32、64和128若虫）进行的。捕食者在用香蒲花粉饲养十代后表现出III型功能反应（G10），而当捕食者没有花粉经验时表现出II型功能反应。估计最大捕食率（T/Th）最高的是G0（127只猎物/天），最低的是G10（85只猎物/日）；而在上述世代中观察到的最大捕食率（OMPR）分别为67和84猎物/天。G10中捕食者消耗的猎物数量和产卵数量显著多于G0。捕食者的世代、猎物密度及其相互作用对捕食和产卵率的影响具有统计学意义。因此，由于群体饲养的捕食者对香蒲花粉具有较高的捕食和产卵率以及高效的品质，因此该花粉可以作为群体饲养N.cucumeris的合适食物来源。

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来源期刊

Systematic and Applied Acarology ENTOMOLOGY-

CiteScore

2.20

自引率

33.30%

发文量

152

期刊介绍： Systematic and Applied Acarology (SAA) is an international journal of the Systematic and Applied Acarology Society (SAAS). The journal is intended as a publication outlet for all acarologists in the world. There is no page charge for publishing in SAA. If the authors have funds to publish, they can pay US$20 per page to enable their papers published for open access. SAA publishes papers reporting results of original research on any aspects of mites and ticks. Due to the recent increase in submissions, SAA editors will be more selective in manuscript evaluation: (1) encouraging more high quality non-taxonomic papers to address the balance between taxonomic and non-taxonomic papers, and (2) discouraging single species description (see new special issues for single new species description) while giving priority to high quality systematic papers on comparative treatments and revisions of multiple taxa. In addition to review papers and research articles (over 4 printed pages), we welcome short correspondence (up to 4 printed pages) for condensed version of short papers, comments on other papers, data papers (with one table or figure) and short reviews or opinion pieces. The correspondence format will save space by omitting the abstract, key words, and major headings such as Introduction.