Benefits of intraguild interactions between zoophytophagous predators and of bottom-up effects of fertilisation for sustainable management of tomato pests

IF 5.6 1区农林科学 Q1 ENTOMOLOGY

Entomologia Generalis Pub Date : 2024-04-09 DOI:10.1127/entomologia/2024/2381

Kouassi A.J. Konan, Coline C. Jaworski, Roger Boll, Axelle Desneux, San-Whouly M. Ouali-N’Goran, Thibaud Martin, Benjamin Gard, Roselyne Souriau, Anne-Violette Lavoir, Nicolas Desneux

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引用次数: 0

Abstract

Effective management of tomato pests such as Bemisia tabaci and Tuta absoluta requires the integration of more sustainable control methods. Applying integrated pest management (IPM) approaches using combinations of biocontrol agents with agronomic practices such as the modulation of fertilisation offers opportunities toward more efficient pest control, all the more so since the underlying bottom-up and top-down regulations are interdependent. We investigated the relative influence of the bottom-up effects of reduced fertilisation (by 47%) and the use of the mirid predators Dyciphus errans or Macrolophus pygmaeus in combination with Nesidiocoris tenuis on the control of B. tabaci and T. absoluta. Densities of B. tabaci and T. absoluta population decreased more rapidly when fertilisation was reduced. The presence of D. errans caused reduction in N. tenuis densities and in the number of necrotic rings caused by N. tenuis. The negative effects of bottom-up forces triggered by reduced fertilisation on B. tabaci, T. absoluta and N. tenuis populations and damage were greater in the presence of D. errans. Our study shows that interactions between predators and fertilisation management are important in agro-ecosystems and should be considered in the development of sustainable IPM strategies.

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植食性捕食者之间的群落内相互作用以及施肥的自下而上效应对番茄害虫可持续管理的益处

要想有效防治番茄害虫（如烟粉虱和 Tuta absoluta），就必须采用更具可持续性的防治方法。将生物控制剂与农艺措施（如调节施肥量）相结合的害虫综合治理（IPM）方法为更有效地控制害虫提供了机会，由于自下而上和自上而下的基本规则是相互依存的，因此就更有必要了。我们研究了减少施肥量（47%）以及将蚜虫天敌 Dyciphus errans 或 Macrolophus pygmaeus 与 Nesidiocoris tenuis 结合使用，这两种自下而上的方法对防治烟草小蜂（B. tabaci）和绝对小蜂（T. absoluta）的相对影响。当受精率降低时，烟草小蜂和绝对小蜂的数量减少得更快。D. errans 的存在降低了 N. tenuis 的密度，也减少了 N. tenuis 造成的坏死环数量。在 D. errans 的存在下，施肥量减少引发的自下而上的力量对 B.tabaci、T. absoluta 和 N. tenuis 的数量和危害的负面影响更大。我们的研究表明，天敌与施肥管理之间的相互作用在农业生态系统中非常重要，在制定可持续的虫害综合防治战略时应加以考虑。

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来源期刊

Entomologia Generalis 生物-昆虫学

CiteScore

7.10

自引率

18.80%

发文量

审稿时长

>12 weeks

期刊介绍： Its scope covers all aspects of basic and applied research dealing with insects and more broadly with arthropods inhabiting wild, agricultural and/or urban habitats. The journal also considers research integrating various disciplines and issues within the broad field of entomology and ecology. Entomologia Generalis publishes high quality research articles on advances in knowledge on the ecology and biology of arthropods, as well as on their importance for key ecosystems services, e.g. as biological control and pollination. The journal devotes special attention to contributions providing significant advances (i) on the fundamental knowledge and on sustainable control strategies of arthropod pests (including of stored products) and vectors of diseases, (ii) on the biology and ecology of beneficial arthropods, (iii) on the spread and impact of invasive pests, and (iv) on potential side effects of pest management methods. Entomologia Generalis welcomes review articles on significant developments in the field of entomology. These are usually invited by the editorial board, but proposals may be sent to the Editor-in-Chief for preliminary assessment by the editorial board before formal submission to the journal. The journal also considers comments on papers published in Entomologia Generalis, as well as short notes on topics that are of broader interest.