Different species of stored-grain pest prey alter the demographic parameters of the predator Cheyletus malaccensis (Acari: Cheyletidae)

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research Pub Date : 2025-03-08 DOI:10.1016/j.jspr.2025.102617

Yinbiao Han , Dingrong Xue , Liyuan Xia , Yongfu Gao , Jianhua Lü , Xu Su , Zhiqi Liu , Yi Wu

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引用次数: 0

Abstract

Cheyletus malaccensis (Oudemans) is a predatory mite that can effectively control stored-grain pests and is a promising biological control agent in China. To promote the application of predatory mites to control stored-grain pests, the selection of stored-grain pest prey by C. malaccensis during large-scale feeding and population establishment needs to be studied. Therefore, we studied the life table parameters of C. malaccensis when fed five different prey species. Predator bodies were yellowish when consuming Aleuroglyphus ovatus and Carpoglyphus lactis, blackish when feeding on Lasioderma serricorne eggs, and brown spots appeared when feeding on Cryptolestes pusillus eggs. C. malaccensis completed its life cycle on each of the five types of prey. The effects of prey on C. malaccensis population reproduction were in the order, from greatest to least, C. lactis, A. ovatus, L. serricorne eggs, Rhyzopertha dominica eggs, and C. pusillus eggs. The highest fecundity (369.3 eggs per female) of C. malaccensis was recorded with the prey C. lactis, which was associated with an intrinsic rate of increase of 0.2417 day⁻¹. According to nutrient analyses, high sugar and protein levels in prey might have restricted the growth of C. malaccensis. The study data support the conclusion that C. lactis can serve as alternative prey to support population increase of C. malaccensis. Effective populations of C. malaccensis can also established by feeding on the eggs of stored-grain pests. The information in this study will contribute to the development of effective biological control strategies for managing stored-grain pests.

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来源期刊

Journal of Stored Products Research 生物-昆虫学

CiteScore

5.70

自引率

18.50%

发文量

112

审稿时长

45 days

期刊介绍： The Journal of Stored Products Research provides an international medium for the publication of both reviews and original results from laboratory and field studies on the preservation and safety of stored products, notably food stocks, covering storage-related problems from the producer through the supply chain to the consumer. Stored products are characterised by having relatively low moisture content and include raw and semi-processed foods, animal feedstuffs, and a range of other durable items, including materials such as clothing or museum artefacts.