Inheritance mode and properties of fipronil resistance in Oxycarenus hyalinipennis Costa (Hemiptera: Lygaeidae)

Inheritance mode and metabolic mechanism of the sulfoximine insecticide sulfoxaflor resistance in Oxycarenus hyalinipennis (Costa)

“…Our results indicate the 0.2 value of h 2 in the Sulfo‐Sel strain and it is expected that DCB would need 6.6 generations for a 10‐fold increase in sulfoxaflor resistance. Other findings with different values of h 2 were reported in different cotton insect pests against various insecticides, for example O. hyalinipennis to fipronil was 0.24, 9 D. koenigii to imidacloprid and emamectin benzoate was 0.38 and 0.59, respectively, 82,83 P. solenopsis to spinosad and chlorpyrifos was 0.94 and 0.59, respectively, 93,103 and Spodoptera litura to imidacloprid was 0.15 21 . Although laboratory experiments are not a replica of field conditions, the estimated h 2 and projected rate ( G ) of resistance through laboratory selection could be used in devising resistance management strategy.…”

“…It feeds on host plants such as Abelmoschus esculentus (L.), Zea mays L, Ficus carica L. and Punica granatum L 3,4 . It is reported from the USA, 5 Israel, 6 Egypt, 7 Africa, India and South‐East Asia 8 and Pakistan 9 . Both DCB nymphs and adults are cell sap feeders and cause injuries to cotton seeds, which ultimately reduces the seed weight (15%) and affects germination ability (88%) 10 .…”

Sulfoxaflor resistance in Oxycarenus hyalinipennis (Costa) induces negligible cross‐resistance to other tested insecticides: stability, risk assessment, and fitness cost

“…The fresh branches of China rose Hibiscus rosa-sinensis L. and open cotton bolls were used for completing the life cycle under laboratory conditions at a temperature of 27 ± 2 °C, 65% ± 5% R.H. and 16:8 h L: D photoperiod. 6 The leaves of H. rosa-sinensis provided moisture for the insects and open bolls provided sites for egg laying. The camel hair brush was used to separate different stages of O. hyalinipennis.…”

“…2 Geographically, O. hyalinipennis has been found in the United States, 3 Africa, India, Southeast Asia, 4 Bahamas, 5 and Pakistan. 6 The adults and nymphs of O. hyalinipennis suck fluid from the young stems, leaves and seeds 6,7 and cause significant losses to cotton seeds, seed weight, seed germination 8 and lint (e.g., by inducing discoloration). 9 In Pakistan, various chemicals have been foliar applied for controlling insect pests including O. hyalinipennis in cotton 10 such as fipronil, triazophos, profenofos, and nitenpyram.…”