Cyazypyr<SUP>TM</SUP> Selectivity for Three Species of Phytoseiid for Coffee and Other Relevant Agricultural Crops in Brazil

Abstract

Mites belonging to the family Phytoseiidae are the most important and most widely studied among predatory mites of phytophagous mites. The phytophagous mites Brevipalpus phoenicis (Geijskes, 1939) (Tenuipalpidae) and Oligonychus ilicis (McGregor, 1917) (Tetranychidae) on coffee (Coffea spp.), are frequently found in combination with the predaceous mites Iphiseiodes zuluagai Denmark & Muma, 1972; Euseius alatus DeLeon, 1966 and Amblyseius herbicolus (Chant, 1959) (Acari: Phytoseiidae), among others. The purpose of this research was to study the effects of the product Cyazypyr TM (cyantraniliprole 100 OD) on these three species of Phytoseiidae, relevant to coffee, citrus and other agricultural crops in Brazil, following standard laboratory procedures. Mated female mites were exposed to fresh-dried residues on a glass surface, with 8 treatments, 5 mites per glass plate and 6 replicates, in a completely randomized experimental design. Each test lasted eight days, with a daily count of the surviving females and of eggs laid. Cyazypyr TM , in all tested doses (75, 100, 125, 150, 175 and 200 g a.i./ha), was selective for the studied species, A. herbicolus, I. zuluagai, and E. alatus. Overall the treatments resulted in low mortality rates and negligible impact on the reproduction. Therefore, based on IOBC standards, Cyazypyr TM can be classified as not harmful (class 1) or slightly harmful (class 2), comparable to the agrochemical Talento TM (hexythiazox 500 WP-12 g a.i./ha) equivalent to a harmless standard of selectivity in the laboratory. Cyazypyr TM is therefore a complement to programs of integrated pest management, to preserve the populations of predatory mites in crops of coffee and citrus, among others, in Brazil.

Exposure to cyantraniliprole causes mortality and disturbs behavioral and respiratory responses in the coffee berry borer (Hypothenemus hampei)

“…Within this chemical group, cyantraniliprole is a broad‐spectrum insecticide active on Coleoptera, Diptera, Hemiptera, Lepidoptera, and Thysanoptera . The efficacy of cyantraniliprole has been demonstrated against coffee pests, leading to its current pattern of frequent use . However, it remains unknown how this insecticide affects locomotor activity and respiration in an insect as cryptic as H. hampei .…”

Combined Non-Target Effects of Insecticide and High Temperature on the Parasitoid Bracon nigricans

“…Amarasekare and Shearer [ 53 ] assessed lethal and sublethal effects of cyantraniliprole on two lacewing species and found no significant effects on larval mortality while causing significant adult mortality. Conversely, cyantraniliprole was selective to three predatory mites as reported by Reis et al [ 54 ]. Similarly, no negative impact of this insecticide was detected on the populations of pirate bugs Orius insidiosus (Say) and O .…”

Monitoring of Diaphorina citri populations from Florida reveals reduced susceptibility to cyantraniliprole and thiamethoxam

“…Evaluations of susceptibility changes to cyantraniliprole have been conducted with various species in multiple locations and continuing high levels of susceptibility have been observed in the field to date. Specifically, resistance to cyantraniliprole has not yet been observed with green peach aphid, Myzus persicae , Sulzer (Hemiptera: Aphididae) and the cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae) (Foster et al, 2012; Little & Umina, 2017), greenhouse whitefly, Trialeurodes vaporariorum Westwood (Homoptera: Aleyrodidae) (Moreno et al, 2018), annual bluegrass weevil, Listronotus maculicollis Kirby (Coleoptera: Curculionidae) (Koppenhöfer et al, 2018), cotton bollworm, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) (Bird, 2016), Colorado potato beetle, Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae) (Scott et al, 2014), pepper weevil, Anthonomus eugenii Cano (Coleoptera: Curculionidae) (Caballero et al, 2015), phytophagous mites, Brevipalpus phoenicis Geijskes (Acari: Tenuipalpidae) or southern red mite, Oligonychus ilicis McGregor (Acari: Tetranychidae) (Reis et al, 2014). However, resistance to cyantraniliprole has already been observed in other species and examples include sweet potato whitefly, Bemisia tabaci Gennadius (Hemiptera: Aleyradidae) (Grávalos et al, 2015), oriental leafworm moth, Spodoptera litura Fabricius (Lepidoptera: Noctuidae) (Sang et al, 2016), tomato leafminer, Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) (Silva et al, 2011), and diamondback moth, Plutella xylostella L (Lepidoptera: Plutelliade) (Jouraku et al, 2020; Wang & Wu, 2012).…”