Applications of Chemical and Biological Control Strategies for Horticultural Crops

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Insect Pest Management".

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 1944

Special Issue Editor

1. Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
2. Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, China
Interests: insect pest control; resistance mechanisms; field resistance monitoring; integrated pest management; biopesticide

Special Issue Information

Dear Colleagues,

Horticultural crops are confronted with numerous pest-related problems, including diseases, arthropods and weeds, threatening the quality and safety of agricultural products. Strategies have been made for the suppression of these “intruders”, among which chemical and biological controls are of core importance. Chemicals play a critical role in the control of horticulture pests, while extensive application accelerates the evolution of resistance, which should be taken into account when developing tactics for insect pest management. Therefore, reasonable strategies for the field application of chemicals are essential for chemical control. Bio-control methods, such as the application of natural enemies, can successfully repress the invasion of pests, and are receiving increasing attention from professionals for the sake of food and environment safety, while its field application and control efficacy can be improved.

This Special Issue will focus on the application of innovative and efficient methods concerning chemical and biological control for horticultural crops. We welcome the submission of research on the development of novel chemicals, the identification and evaluation of natural enemy resources, measures for delaying the resistance of pests to chemicals, methods to improve the efficacy of bio-control, and other research advancing the development of chemical and biological control for horticultural crops.

Dr. Zhenyu Li
Guest Editor

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Keywords

  • biocontrol
  • chemical control
  • chemical resistance of pests
  • horticultural crops
  • natural enemies
  • bioagents
  • integrated pest management
  • vegetable quality and safety
  • bioinsecticides

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Published Papers (1 paper)

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Research

15 pages, 2637 KiB  
Article
Avermectin Trunk Injections: A Promising Approach for Managing the Walnut Husk Fly (Rhagoletis completa)
by Máté Kiss, Csilla Sörös, Ádám Gutermuth, András Ittzés and Árpád Szabó
Horticulturae 2023, 9(6), 655; https://doi.org/10.3390/horticulturae9060655 - 1 Jun 2023
Cited by 3 | Viewed by 1628
Abstract
This study examined the larvicidal effect of trunk-injected abamectin and emamectin benzoate against the walnut husk fly (Rhagoletis completa Cresson, 1929). Walnut trees in two locations in two years were injected with the pesticides at different concentrations. For the toxicokinetic studies, the [...] Read more.
This study examined the larvicidal effect of trunk-injected abamectin and emamectin benzoate against the walnut husk fly (Rhagoletis completa Cresson, 1929). Walnut trees in two locations in two years were injected with the pesticides at different concentrations. For the toxicokinetic studies, the active ingredient content was measured in the leaves, flowers, husks, and kernels, using a UHPLC-MS/MS analytical method. The walnut husk fly infestation rates were between 3 and 70% and 10 and 34% for abamectin and emamectin benzoate, respectively, and were much lower compared to those measured for the control. The active ingredient content in the walnut husk showed a positive correlation with the larvicidal effect. The injections had a measurable but unsatisfactory insecticidal effect in the second year, when the economic threshold was exceeded. Trace amounts of the active ingredients were detected in the flowers. The residue analysis showed a declining concentration trend in the leaves over time. The largest quantities were detected in the leaves (≤439 ng/g of abamectin; ≤19,079 ng/g of emamectin benzoate), with concentrations in the husks of orders of magnitude lower (≤5.86 ng/g; ≤50.19 ng/g). The measurements showed no active ingredient residue above the MRLs in either fresh or dried kernels. The results indicate that trunk injections of abamectin, as well as trunk injections of emamectin benzoate, have the potential to suppress walnut husk fly populations. Full article
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