The effect of flowering calendula and cuphea plants onOrius insidiosussurvival and predation ofAphis glycines

Abstract

2015): The effect of flowering calendula and cuphea plants on O. insidiosus survival and predation of Aphis glycines, Biocontrol Science and Technology, AbstractFlowering oilseed crops have the potential to diversify agroecosystems currently dominated by corn and soybeans and improve the provision of ecosystem services such as pest control. Nectar and pollen feeding may increase natural enemy fitness and searching behavior, increasing their survival and prey consumption rates. The soybean aphid (Aphis glycines Matsumura; Hemiptera: Aphididae) is a particularly widespread and costly agricultural pest. In this study, we evaluate the effects of two flowering oilseed crops, cuphea and calendula, on the survival of the insidious flower bug (Orius insidiosus Say; Hemiptera: Anthocoridae) and its consumption levels of A. glycines placed on soybean plants. We also evaluated the survival of O. insidiosus when placed on glandular and non-glandular cuphea varieties. The amount of A. glycines that remained unconsumed by O. insidiosus did not differ among treatments. Because mortality levels of O. insidiosus were higher on glandular compared to non-glandular cuphea plants, glandular trichomes, or plant hairs, may play a role in impeding movement and prey consumption by O. insidious.

Varying the spatial arrangement of synthetic herbivore‐induced plant volatiles and companion plants to improve conservation biological control

“…They may also provide shelter or reproductive sites for natural enemies and attract them through visual and olfactory cues, drawing them to suboptimal or disturbed environments such as crop fields (Beane & Bugg, ; Gurr et al., ; Perović et al., ; Zhao et al., ). Frequently used companion plants include marigold ( Calendula officinalis ; Martínez‐Uña, Martín, Fernández‐Quintanilla, & Dorado, ; Nemec, Beckendorf, Hesler, Riedell, & Lundgren, ; Zhao et al., ) and sweet alyssum ( Lobularia maritima ; Brennan, ; Gontijo, Beers, & Snyder, ). In those studies, these companion plants were considered as abundant pollen and nectar providers, and they mostly attracted hoverflies and hemipteran bugs, resulting in a successful control of arthropod pests.…”

Residual effects of four pesticides on the predatory bug,Orius albidipennisReut. (Hem.: Anthocoridae)

“…There are numerous studies regarding the effects of pesticides on beneficial species (Zhang & Sanderson 1990;Spollen & Isman 1996;Moscardini et al 2013;Garzón et al 2015;Nemec et al 2016). Most ones have focused on immediate and acute toxicity of pesticide but a few studies have demonstrated the relationship between pesticide residue and mortality of exposed beneficial arthropods (Bellows et al 1985).…”

Vertical distribution of Bemisia tabaci on soybean and attractiveness of cultivars

“…Cultivars with a low density and/or trichome length present an inadequate environment for the development of whiteflies, as this facilitates the eggs being blown away (Butter & Vir, 1989) or to get located more quickly by natural enemies (Riddick & Simmons, 2014;Nemec et al, 2016). However, trichomes are probably not the only characteristic responsible for the differences observed between cultivars, and further studies related to biochemical factors are necessary.…”