recently, researcher song jian, jia haimin and cheng jiaxu from institute of plant protection went to hengshui city and shijiazhuang city to provide technical service for agricultural management in rainy season and prevention and control of disease and pest of chinese chive(allium tuberosum rottler ex sprengle.) and chinese herbal medicine.
at wuyi county, hengshui, experts provided guidance on green production technology of greenhouse chinese chive. in view of the high temperature in summer, it was recommended to reasonably control water and fertilizer, shade the light and avoid exposure to the sun. in view of the recent strong convective weather, it was recommended to cover the film in time before the rainstorm, ventilate and drain the water in time after the rain, and reasonably apply high-quality organic fertilizer, amino acid water-soluble fertilizer or microbial fertilizer to restore root activity. it was reccommended to prevent and control bradysia odoriphaga yang et zhang, acrolepla alliella semenov et kuzn and thrips by using fly nets and sticky traps at seedling stage. at the initial stage of insect infestation, the suspension agent of bacillus thuringiensis(5 billion spores/ml), high-efficiency cypermethrin, thiamethoxam, chlorfenapyr and fludioxonil were used for prevention and control. in view of the chinese chives phytophthora blight, experts suggested farmers ventilate reasonably, reduce the humidity and apply fungicide spray such as dimethomorph and cymoxanil to prevent and control.
at the pinellia ternata cultivation base in shenze county, shijiazhuang, in view of the occurrence and harm of the rhizoglyphus, it was recommended that the plots at the early stage of occurrence be controlled by using 5 billion spores/ml bacillus thuringiensis suspension agent. for seriously harmed plots, chemical agents such as abamectin and dinotefuran were suggested to be used. in view of the pathogenesis characteristics of basal stem rot, experts proposed to use bacillus subtilis for prevention, and spray agents such as kasugamycin dicopper chloride trihydroxide, kasugamycin zinc thiazole or thiediazole copper at the early stage of the disease.
（source from www.hebnky.com）