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Using flower strips to promote green lacewings to control cabbage insect pests

Alcala Herrera, Rafael and Cotes Ramal, Belén and Agusti, Nuria and Tasin, Marco and Porcel Vilches, Mario (2022). Using flower strips to promote green lacewings to control cabbage insect pests. Journal of Pest Science. 95 :2 , 669-683
[Research article]

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Abstract

Habitat management improves biological control by increasing the abundance and fitness of natural enemies through the provision of floral resources along field edges or between crops. Among the natural enemies reliant on flower resources, green lacewings often stand out due to their abundance, predation capacity and polyphagy. We evaluated the impact of tailored flower strips on the enhancement of natural enemies, especially green lacewings, in three organic cabbage (Brassica oleracea) farms in Southern Sweden. Insects were sampled from the flower strips, and cabbage pests and predators were visually recorded in the crop. In a laboratory assay, the pollen feeding preferences of Chrysoperla carnea (Stephens, 1836) were evaluated in a dual-choice test. The pollen consumed by the Chrysopidae was extracted from laboratory and field specimens, then quantified and identified. Flower strips were found to attract predators and parasitoids, whose abundance increased as flowers bloomed. Cabbage plants next to the flower strips showed lower pest infestation as compared to cabbage plant control, although no significant differences were observed in the number of predators. Chrysopidae used flower strips as feeding, reproduction and shelter sites and mainly consumed pollen from Phacelia tanacetifolia Benth. Under laboratory conditions, C. carnea showed a preference for P. tanacetifolia and Coriandrum sativum L. pollen over Borago officinalis L. and Fagopyrum esculentum Moench. We show that tailored flower strips could be an efficient tool for enhancing beneficial arthropods and should be considered in integrated pest management for cabbage crops.

Authors/Creators:Alcala Herrera, Rafael and Cotes Ramal, Belén and Agusti, Nuria and Tasin, Marco and Porcel Vilches, Mario
Title:Using flower strips to promote green lacewings to control cabbage insect pests
Series Name/Journal:Journal of Pest Science
Year of publishing :2022
Volume:95
Number:2
Page range:669-683
Number of Pages:15
Publisher:SPRINGER HEIDELBERG
ISSN:1612-4758
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Keywords:Ecological infrastructure, Conservation biological control, Pollen, Chrysoperla carnea, Predators, Parasitoids
URN:NBN:urn:nbn:se:slu:epsilon-p-116227
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-116227
Additional ID:
Type of IDID
DOI10.1007/s10340-021-01419-7
Web of Science (WoS)000687500800002
ID Code:27224
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Protection Biology
Deposited By: SLUpub Connector
Deposited On:28 Feb 2022 11:25
Metadata Last Modified:28 Feb 2022 11:31

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