Biotic resistance limits the invasiveness of the western flower thrips,Frankliniella occidentalis(Thysanoptera: Thripidae), in Florida
| Autor: | Kara Tyler-Julian, Joe Funderburk, Charles Mellinger, Mrittunjai Srivastava, Galen Frantz |
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| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
Biotic component biology Thrips business.industry fungi Biological pest control Pest control food and beverages Thripidae biology.organism_classification 010603 evolutionary biology 01 natural sciences Anthocoridae General Biochemistry Genetics and Molecular Biology Western flower thrips 010602 entomology Insect Science Botany Orius business Agronomy and Crop Science Ecology Evolution Behavior and Systematics |
| Zdroj: | Insect Science. 23:175-182 |
| ISSN: | 1672-9609 |
| DOI: | 10.1111/1744-7917.12250 |
| Popis: | The spread of the western flower thrips, Frankliniella occidentalis (Pergande), has resulted in the world-wide destabilization of established integrated pest management programs for many crops. It is hypothesized that frequent exposure to insecticides in intensive agriculture selected for resistant populations, which allowed invasive populations in the eastern USA to overcome biotic resistance from the native community of species. Research conducted in Florida to understand the role of biotic factors in limiting the abundance of the western flower thrips is reviewed. Orius spp. (Hemiptera: Anthocoridae) are effective predators that suppress populations of thrips on crop and non-crop hosts in southern and northern Florida. Orius are more effective predators of the western flower thrips than the native flower thrips, F. tritici (Fitch) and F. bispinosa (Morgan). The native species are competitors of the western flower thrips. Excessive fertilization and the use of broad-spectrum insecticides in crop fields further enhances populations of the western flower thrips. Interactions with native species clearly limit the abundance of western flower thrips in Florida, but populations are abundant in fertilized crop fields where application of insecticides excludes predators and competitor species. |
| Databáze: | OpenAIRE |
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