Hanging stick board must pay attention to the method
As the temperature rises, pests in greenhouses have become increasingly severe. The use of slime board is a good method for environmental protection and economy, and it is worth recommending. However, the method of suspending the yellow board is not correct, resulting in a significant reduction in the use of the yellow stick board.
First of all, the number of sticky board installations should be determined based on the number of major pests to be controlled. If the number is too small, the expected control effect cannot be achieved, but it is not necessary to set the number too large. Such as the prevention and treatment of greenhouse whitefly, tobacco whitefly, thrips, set 30 to 40 sticks per mu mussel board can be.
Secondly, the location of the hanging yellow stick board is not suitable, which results in a significant reduction in the effectiveness of the stickworm. Taking the main control insect pest B. tabaci as an example, B. tabaci migration is relatively poor, so the hanging height of the yellow armyworm board should be kept slightly flat or 10 cm higher than the growth point at the bottom of the board. And as the plants continue to grow taller and timely adjust the height of the suspended board of stickies board.
The following methods can be used to make these yellow armyworm board to be used, that is: to divide each of the four sticky board into two groups with different heights. The height of one group of sticky board is set to be higher than the top growth point of the tomato 10 Within centimeters, specifically for whitefly pests with relatively poor migratory ability; the height of the other sticky board is set to be 30 to 40 cm above the top of the tomato growth spot, in order to target more aggressive migratory locusts and other pests .
In addition, it is also necessary to add that the different insects have different chromogenic properties. In addition to setting up yellow stick board to kill insects such as aphids and whitefly that have strong tropism toward yellow, if necessary, they need to be targeted. Blue-trend pests Thrips are blue traps. Because the horses are afraid of the light, the sticky board against the thrips needs to be hung or inserted at the near ground surface of the crop base.
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