Pay attention to timely control of wheat leaf bees
The wheat leaf bee mainly damages the wheat leaves with larvae, bites from the edge of the leaves or eats the tips of the leaves. In severe cases, the leaves can be eaten, leaving only the veins, which seriously affect photosynthesis and wheat grouting. The larvae have a pseudo-dead appearance. They live on leaves at the age of 1 to 2 years, and they are afraid of light after 3 years of age. They are latent in the wheat groves during the day and are harmed in the evening. The food intake increases after the 4th instar. Control methods: A pharmaceutical control. The appropriate period of control should be controlled before the 3rd instar larvae, with 25% cyanoptoprulene EC 40-50 ml watered 30 kg/mu, or 2.5% Lambda-cyhalothrin EC 20 to 28 ml per mu. 30 kg of water spray; or 20% trichlorfon wettable powder 2500-3000 times per acre; or 40% phoxim 1500 times spray control. Spray time is better until evening or before 10am. The second is manual trapping. Using the false dead habit of the larvae of the leaf beetle, manual trapping can be performed in the evening.
In terms of knobs, there are usually two types of entrances and exits for all types of buildings.One is the key door handle lock.This is a simple door handle that includes an internal lock, which is operated by inserting a key into the lock part.Turning the key can lock and unlock the door, effectively restricting those who have the key from entering the building.Keys are not allowed to be inserted. This type of door handle lock relies on a smaller handle located in the middle of the door handle.Turn this small handle to the left or right to lock or open the door.This type of knob is usually used in the master bedroom or bathroom of a private house. The electronic version of the knob lock has also been widely used.
A key doorknob lock. This is a simple doorknob that includes an internal lock that is operated by inserting a key into the lock component. Turning the key makes it possible to lock and unlock the door, effectively limited access to the building to those who have keys that fit the lock.This is the oldest and most common form of knob lock in the world today.
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