Functional response and control efficacy of Plesiochrysa ramburi and Apertochrysa roseusfrontata (Neuroptera: Chrysopidae) on the Grey Pineapple Mealybug

IF 4 2区农林科学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Biological Control Pub Date : 2025-11-01 Epub Date: 2025-09-27 DOI:10.1016/j.biocontrol.2025.105899

Ziyuan Li , Linlin Shi , Jian Wen , Yanmei Zhang , Kewei Chen

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Abstract

The gray pineapple mealybug, Dysmicoccus neobrevipes Beardsley (Hemiptera: Pseudococcidae), causes damage through sap-sucking, honeydew secretion, and potentially transmission of pineapple mealybug wilt-associated virus (PMWaV), thereby threatening the sustainability of China’s sisal industry. This study assessed the biological control potential of two predatory lacewings, Plesiochrysa ramburi (Schneider) and Apertochrysa roseusfrontata Wang & Li & Liu, collected from sisal plantations in Zhanjiang (Guangdong Province, China), by evaluating their functional responses and greenhouse control efficacy against D. neobrevipes. Laboratory assays showed that all larval instars of P. ramburi exhibited Type II functional response, whereas A. roseusfrontata displayed such responses only in the 2nd and 3rd instars. Across all stages, P. ramburi exhibited significantly higher predation rates than A. roseusfrontata. Greenhouse trials further revealed that releases of the 3rd instar larvae from both species at predator-pest ratios of 1:10, 1:15, and 1:20 reduced D. neobrevipes populations by over 80 % within 14 days. Specifically, inundative releases after mealybug infestation at a ratio of 1:10 reduced populations by 98.58 % for P. ramburi and 96.52 % for A. roseusfrontata. Overall, all larval stages of both species were effective predators of D. neobrevipes, with P. ramburi showing superior performance. Both inoculative and inundative release of P. ramburi larvae effectively controlled D. neobrevipes in greenhouses, highlighting its promise as a candidate for biological control.

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灰凤梨粉蚧对灰凤梨粉蚧的功能反应及防治效果

灰凤梨粉蚧（Dysmicoccus neobrevipes Beardsley，半翅目：假球虫科）通过吸汁、分泌蜜露，并可能传播凤梨粉蚧萎蔫相关病毒（PMWaV），从而威胁到中国剑麻产业的可持续性。本研究通过对两种捕食性草蛉（Plesiochrysa ramburi (Schneider)）和Apertochrysa roseusfrontata Wang &； Li &; Liu)对广东湛江剑麻人工林中新草蛉的功能响应和温室防治效果进行评价，评价其生物防治潜力。实验结果表明，所有幼虫均表现出II型功能反应，而花蔷薇只在2龄和3龄表现出II型功能反应。在所有阶段中，蓝布里草的捕食率都明显高于玫瑰花。温室试验进一步表明，以1:10、1:15和1:20的食虫比释放两种3龄幼虫，14天内新夜蛾种群数量减少80%以上。具体而言，粉蚧侵染后以1:10的比例进行淹没释放，可使白腹粉蚧种群减少98.58%，使玫瑰粉蚧种群减少96.52%。总体而言，两种幼虫各阶段均为新夜蛾的有效捕食者，其中蓝布氏夜蛾表现更优。接种和淹没释放均能有效控制温室新布氏夜蛾，显示了其作为生物防治的潜力。

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来源期刊

Biological Control 生物-昆虫学

CiteScore

7.40

自引率

7.10%

发文量

220

审稿时长

63 days

期刊介绍： Biological control is an environmentally sound and effective means of reducing or mitigating pests and pest effects through the use of natural enemies. The aim of Biological Control is to promote this science and technology through publication of original research articles and reviews of research and theory. The journal devotes a section to reports on biotechnologies dealing with the elucidation and use of genes or gene products for the enhancement of biological control agents. The journal encompasses biological control of viral, microbial, nematode, insect, mite, weed, and vertebrate pests in agriculture, aquatic, forest, natural resource, stored product, and urban environments. Biological control of arthropod pests of human and domestic animals is also included. Ecological, molecular, and biotechnological approaches to the understanding of biological control are welcome.