Determination the population trends of cereal aphids and associated parasitoids by yellow sticky traps with reference to aphid management on wheat

Effect of the Utilization of the Bioinsecticide Spinosad on the Whitefly, Bemisia tabaci (Genn.) and the Cabbage Aphid, Brevicoryne brassicae (L.), Attacking the Red Cabbage Plants and Also Estimating its Effect on the Mummies of the Aphid Parasitoid Diaeretiella rapae (McIntoch), in the Greenhouses Located in Giza Governorate.

“…However, Wagh et al (2017) recorded Spinosad as the most effective treated compound among many tested ones to reduce the aphidś population (the men total numbers were 2.09, 1.31 and 3.07 aphids/3 leaves/plant) compared with the untreated control (19.73, 17.47 and 18.20 aphids/3 leaves/plant) at three, seven and ten days after spraying this compound, respectively and it gave highest marketable yield. While, Salem et al (2018) reported that, Spinosad reduced the cereal aphid complex infesting the wheat plants by 97.05%. Also, Henry and Vijay (2020) revealed that Spinosad was found to be effective against the cabbage aphid, B. brassicae (with 114.33, 98.32, 88.95 and 102.67 aphids per plant) compared with the untreated control (231.67, 238.31, 250.56 and 260.19), i.e., 49.14, 57.48, 63.42 and 59.34 percentages of the aphid population density reduction in comparing with the untreated control) at 3, 7, 11 and 15 days after spraying this compound, respectively.…”

Responsibility of Certain Biotic Factors for Management Populations of Brevicoryne brassicae L in Cabbage fields

“…The direct count method was used to record numbers of the aphid B. brassicae inhabiting the outer cabbage leaves at weekly intervals as used by Varmora et al (2009); Yuliadhi et al (2015); Salem et al (2018). Four cabbage leaves (1 leaf / plant) / each replicate (4 replicates) / each cultivar were randomly picked up from 4 infested cabbage plants and transferred to the laboratory to later examination.…”