Mealybug, Planococcus ficus, reduction through pavement ant, Tetramorium immigrans, management using polyacrylamide hydrogel baits in vineyards

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2024-12-09 DOI:10.1016/j.cropro.2024.107078

Nathan H. Mercer, David R. Haviland, Kent M. Daane

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引用次数: 0

Abstract

The mealybug Planococcus ficus Signoret is an important vineyard pest, causing direct damage from feeding as well as vectoring important viral pathogens. Several species of ants tend P. ficus in California, including the pavement ant, Tetramorium immigrans Santschi. We tested the impact of polyacrylamide hydrogels loaded with a 25% sucrose solution and a variety of individual insecticide active ingredients (abamectin, boric acid, pyriproxyfen, spinosad, and thiamethoxam) on T. immigrans populations in vineyards. Additionally, we measured how a reduction of T. immigrans impacts densities of both P. ficus and its natural enemies. All insecticides tested reduced ant counts to some extent. Thiamethoxam was the most effective insecticide tested in both years. Boric acid was the least effective overall with pyriproxyfen and spinosad causing intermediate reductions in ant counts. In a separate trial, thiamethoxam loaded hydrogels reduced ant counts and significantly reduced P. ficus infested grape clusters, but did not reduce P. ficus vine trunk populations, nor increase parasitism rates. This is the first trial of hydrogel bait used for T. immigrans management and demonstrates the effectiveness of polyacrylamide hydrogels as ant baits and that T. immigrans reduction also lowers P. ficus abundance.

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蚧壳虫 Planococcus ficus Signoret 是一种重要的葡萄园害虫，不仅会直接造成食害，还会传播重要的病毒病原体。在加利福尼亚州，有几种蚂蚁趋向于 P. ficus，包括人行道蚂蚁 Tetramorium immigrans Santschi。我们测试了含有 25% 蔗糖溶液和多种杀虫剂活性成分（阿维菌素、硼酸、吡虫啉、久效磷和噻虫嗪）的聚丙烯酰胺水凝胶对葡萄园中 T. immigrans 数量的影响。此外，我们还测量了 T. immigrans 的减少对榕树蚂蚁及其天敌密度的影响。所有测试的杀虫剂都在一定程度上减少了蚂蚁数量。噻虫嗪是这两年测试的最有效杀虫剂。硼酸的总体效果最差，吡虫啉和久效磷对蚂蚁数量的减少效果居中。在另一项试验中，含噻虫嗪的水凝胶减少了蚂蚁数量，并显著减少了受薜荔虫侵扰的葡萄簇，但没有减少薜荔虫的藤蔓数量，也没有提高寄生率。这是首次将水凝胶诱饵用于蚂蚁管理的试验，证明了聚丙烯酰胺水凝胶作为蚂蚁诱饵的有效性，而且减少蚂蚁也能降低榕树的数量。

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来源期刊

Crop Protection 农林科学-农艺学

CiteScore

6.10

自引率

3.60%

发文量

200

审稿时长

29 days

期刊介绍： The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.