First, get up to the jointing stage
Spray to prevent sheath blight and grass damage
During the early period of horizontal infestation of wheat sheath blight, chemical herbicides can be applied in the Spring, and fenzoyl alcohol pesticides can be added when the herbicides are sprayed to achieve the effects of controlling weeds and sheath blight; and during the longitudinal infestation of sheath blight, When the diseased rate in the field reaches 15%, the control can be started, and 12.5% ​​of diniconazole WP can be used for 20-30 grams, or 20% of triadimefon WP 50-100 grams, or 20% Jinggangmycin wax. Bacillus sp. (Streptomyces sp.) Suspension 60-100 ml water spray control. When spraying, we must pay attention to increase the amount of water (usually the amount of mu must not be less than 45 kilograms), and spray on the base of wheat stems.
In wheat fields that have not been chemically weeded before Winter and wheat is in the jointing stage, when the broadleaf weeds are in the 2- to 4-leaf stage, herbicides such as methamphetyl chloride and tribenuron-methyl can be used for chemical weeding. The agent is mixed with spraying.
Second, booting to flowering
Poisoning soil to control midge
The late mid-April is the booting period of wheat in our province, which is also the period of midge suction. This is the best time to control the midge. Can use 5% chlorpyrifos powder 600-900 grams, formulated into 25-30 kg of poison (sand) soil, Shunmai ridge evenly spread the surface, sprinkle poisoning soil after watering can improve efficacy. Care should be taken not to use drizzling to spray medicine, and with the help of broomsticks, branches and other apparatus, the poisonous soil sticking to the wheat leaves should be dropped on the ground so as to avoid waste and reduce the efficacy of the medicine.
The period from the end of April to the beginning of May is a critical period for the prevention and control of stripe rust. If leaf rust occurs, when the average diseased leaf rate in the field reaches 0.5%-1%, a large area of ​​emergency prevention and treatment shall be organized immediately.
Third, the filling period
Promote "One Spray and Many Preventions" Technology
The grain filling period is the key period for wheat to strive for 1000-grain weight. It is necessary to vigorously popularize the “one spray and multiple defenses†technology and continue to strengthen the adult insects for midge, wheat bran, wheat sheath blight, powdery mildew, stripe rust, head blight and leaf blight. Prevention. The control of midge and aphids can be controlled by spraying with 4.5% beta-cypermethrin, 50% phoxim, or 3% acetamiprid (10% imidacloprid) 1000 times. In addition, 12.5% ​​of diniconazole or 25% tebuconazole was added to these solutions at 1500-2000-fold dilution, or 20% triadimefon or 50% carbendazim-mixed spray was used at 1000-fold dilution. It can prevent and control stripe rust, powdery mildew, sheath blight, leaf blight, etc. at the same time, and achieve the effect of multiple spraying.
Safety Green Sweater,Safety Orange Sweater,High Vis Cardigan,Reflective Safety Sweaters
Ningbo Staneex Imp. & Exp. Co., Ltd. , https://www.staneex.com