Sub-lethal effects of fenbutatin oxide on prey location by the predatory mite Iphiseiodes zuluagai (Acari: Phytoseiidae)

• Published in: Experimental & applied acarology Vol. 47; no. 4; pp. 293 - 299
• Main Authors: Teodoro, Adenir V, Pallini, Angelo, Oliveira, Claudinei
• Format: Journal Article
• Language: English
• Published: Dordrecht Dordrecht : Springer Netherlands 01.04.2009; Springer Netherlands; Springer; Springer Nature B.V
• Subjects: Acari; Acaricides; Animal Ecology; Animal Genetics and Genomics; Animal Systematics/Taxonomy/Biogeography; Animal, plant and microbial ecology; Animals; Applied ecology; Araneae; Biological and medical sciences; Biological control; Biomedical and Life Sciences; Coffea; Coffee; Control; Distilled water; Ecotoxicology, biological effects of pollution; Effects of pollution and side effects of pesticides on protozoa and invertebrates; Entomology; Female; Fundamental and applied biological sciences. Psychology; Lethal effects; Life Sciences; Mites; Mites - drug effects; Mites - physiology; Odorants; Organotin Compounds - pharmacology; Pesticides; Pesticides - pharmacology; Phytopathology. Animal pests. Plant and forest protection; Phytoseiidae; Predatory Behavior - drug effects; Prey; Protozoa. Invertebrates; Smell - drug effects; Tetranychidae; South America; Brazil; America; Predatory mite; Olfactometry; Phytophagous mite; Pesticide selectivity; Sub-lethal effects; Biological control; Sub-lethal effects . Pesticide selectivity; Stimulant plant; Selectivity; Optimization; Brevipalpus phoenicis; Acaricide; Phytophagous; Acari; Beneficial animal; Dicotyledones; Angiospermae; Rubiaceae; Chemical control; Localization; Gamasida; Parasitiformes; Coffea arabica; Acarophagous; Pesticides; Tenuipalpidae; Prey; Acariformes; Arachnida; Sublethal dose; Actinedida; Arthropoda; Spermatophyta; Predator; Invertebrata; Phytoseiidae
• ISSN: 0168-8162; 1572-9702
• DOI: 10.1007/s10493-008-9219-x

We used a Y-tube olfactometer to assess the sub-lethal effects of the acaricide fenbutatin oxide on the olfactory response of the predatory mite Iphiseiodes zuluagai towards odours from: (1) air or undamaged coffee plants; (2) undamaged or red spider mite Oligonychus ilicis-infested coffee plants; (3) undamaged or false spider mite Brevipalpus phoenicis-infested coffee plants. Predatory mite adult females were exposed to residues of fenbutatin oxide or distilled water on leaf discs during a period of 72 h prior experiments. When exposed to distilled water (control treatments), predatory mites significantly preferred undamaged plants over air, O. ilicis-infested plants over undamaged plants, and they did not prefer B. phoenicis-infested plants over undamaged plants. However, predatory mites that had been exposed to residues of fenbutatin oxide were neither attracted towards undamaged plants nor to O. ilicis-infested plants. Thus, fenbutatin oxide affected negatively the olfactory response of I. zuluagai. We conclude that sub-lethal-effect studies should be considered in pesticide selectivity programs since the ability of predatory mites to locate their prey may be negatively affected by non-lethal concentrations of pesticides.