Chemical control of the cabbage aphid (<i>Brevicoryne brassicae</i>L.)

Lowe, A. D.; Jessep, C. T.

doi:10.1080/00288233.1961.10420373

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“…Canola ( Brassica napus L.; Brassicaceae) is one of the most preferred host plants for its development and reproduction. Historically, insecticides have been the major tools to control B. brassicae ( Lowe and Jessep 1961 , Razmjou et al 2019 ). However, this pest has become difficult to manage in recent years ( Hamedani Radja et al 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Induction of resistance, enzyme activity, and phytochemicals in canola plants treated with abscisic acid elevated based on nutrient availability: a case study on Brevicoryne brassicae L. (Hemiptera: Aphididae)

Dehghan

Rounagh-Ardakani

Mohammadzadeh

et al. 2023

Journal of Insect Science

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The cabbage aphid, Brevicoryne brassicae L. (Hemiptera: Aphididae), is one of the important pests of cruciferous plants throughout the world including Iran. In the present study, we grew cultivated canola plants under different fertilizers or distilled water and sprayed them with 100 µM abscisic acid (ABA) or a control solution (NaOH dissolved in water) to study (i) the antibiosis parameters of B. brassicae on these plants; (ii) the antixenosis of B. brassicae adults on these plants; (iii) the plant’s peroxidase (POD), polyphenol oxidase (PPO), and phenylalanine ammonia-lyase (PAL) activity; and (iv) the plant’s total phenolic and glucosinolate content. The results of antibiosis experiments showed that ABA and fertilizers have a profound and negative effect on the performance of B. brassicae. In the antixenosis experiment, control plants attracted a significantly higher number of adult females in comparison to treated plants. Also, B. brassicae had lower performance and preference when they were reared on the ABA-treated fertilized plants with higher levels of phenolic and glucosinolate content. These results prompted us to hypothesize that fertilizers enable canola plants to trigger a higher level of secondary metabolites. Our findings reveal that the type and level of nutrient availability may have different impacts on how the plant regulates its defense mechanisms.

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Section: Introductionmentioning

confidence: 99%