The brown lacewing Micromus angulatus: A new predator for the augmentative biological control of aphids

Pekas, Apostolos; De Smedt, Lien; Verachtert, Niel; Boonen, Sten

doi:10.1016/j.biocontrol.2023.105342

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…At the same time, in terms of leaf health, although there was a protective effect at a dilution of more than seven times, it was not significant, reflecting the relationship between concentration and effect mentioned above. The number of aphids and eggs was counted from one group containing three plants, due to aphids laying eggs very quickly, and during the 2-week experimental observation period, eggs continuously developed into aphids [ 40 , 41 ]. For the convenience of data collection and analysis, we counted the number of adults and eggs on infected plants at the same time every day to examine the effectiveness of the green insecticide we prepared.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Application of Volatilized Wormwood Essence Derived Naturally into Green Insecticide

Jin,

Wang,

Liu

et al. 2024

Molecules

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Naturally occurring substances and their derivatives function as vital resources for pesticides that can be used in fields, such as insecticide production and fungicide development. As a botanical entity displaying multifaceted biological functions, wormwood has received thorough scrutiny across multiple sectors. The insect repellency potency combined with antibacterial and antifungal activities of wormwood position it as a potential candidate for prospective development into eco-friendly chemical pesticides. In this research, Wormwood essential oil was procured via ethanol water under ultrasonic scenarios and subsequently diluted with PEG 400 to formulate green chemical pesticides. The defensive efficacy of this green pesticide on plants was validated through 2 weeks of clustered plant growth experiments. Active constituents that exerted their effects were scrutinized by GC-MS. Furthermore, this green pesticide also displays efficacious effects on the prevention and management of aphids, exhibiting a dose-dependent relationship. 4-terpenol, eucalyptol, carvacrol, and L-borneol were identified by GC-MS as the predominant active constituents in this green chemical pesticide. Wormwood can be leveraged to develop green chemical pesticides, which can protect plants without contaminating the environment.

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Section: Resultsmentioning

confidence: 99%

Preparation and Application of Volatilized Wormwood Essence Derived Naturally into Green Insecticide

Jin,

Wang,

Liu

et al. 2024

Molecules

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Predation Efficiency and Biological Control Potential of Micromus angulatus Against Aphis craccivora

Zhao,

Lou,

Cao

et al. 2024

Agronomy

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Micromus angulatus (Neuroptera: Hemerobiidae) is a widely distributed and highly effective predator that shows promise as a biological control agent against agricultural pests, particularly Aphis craccivora, the cowpea aphid, which threatens leguminous crops globally. This study aimed to evaluate the predation behaviour, search efficiency, and intraspecific interference of M. angulatus at different developmental stages, including first- to third-instar larvae and adults, in controlling adult A. craccivora populations. The results demonstrated that all developmental stages of M. angulatus exhibited predatory behaviour towards adult aphids, with the functional response fitting the Holling Type II model. The instantaneous attack rates for first-, second-, and third-instar larvae and adults were 1.0017, 1.0448, 0.9581, and 0.9508, respectively; the handling times were 0.0158, 0.0051, 0.0016, and 0.0011 days, respectively; and the theoretical maximum daily predation rates were 63.2911, 196.0784, 625, and 909.0909 aphids, respectively. The pest control efficacies were 63.3989, 204.8672, 598.8311, and 864.3192, respectively. The search efficiency at each developmental stage was negatively correlated with aphid density, which decreased as the prey density increased, with second-instar larvae showing the greatest decrease and adults the least. When the aphid density was fixed, the daily predation rate of individual M. angulatus decreased with increasing conspecific density, indicating that predation was affected by its own density, with the interference effect equation being E = 0.6194P−0.87. These findings indicate that M. angulatus, especially in the third-instar larval and adult stages, has considerable potential as a biological control agent for managing A. craccivora populations in agricultural settings. This study contributes valuable insights for developing sustainable agricultural practices by decreasing reliance on chemical pesticides.

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The brown lacewing Micromus angulatus: A new predator for the augmentative biological control of aphids

Cited by 2 publications

References 27 publications

Preparation and Application of Volatilized Wormwood Essence Derived Naturally into Green Insecticide

Preparation and Application of Volatilized Wormwood Essence Derived Naturally into Green Insecticide

Predation Efficiency and Biological Control Potential of Micromus angulatus Against Aphis craccivora

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