Masson's pine caterpillar is one of the main pests in the forest. It winters as a larvae. When the winter comes, the wintering pine caterpillars successively fall out and seriously damage the pine forest. Therefore, grasping the favorable timing of winter to control wintering pine caterpillars will have a multiplier effect.
1, manual control
90% of the pine caterpillars are distributed in the bark joints 7 meters below the trunk. Wintering The late larvae will need tree activities. Before the feeding, they can be used to kill or extinguish urea, cyanogen bromide in the trunk at 6 meters to 7 meters. Chrysanthemum esters and other pesticides are applied along the trunk in a circle so that when the pine caterpillar climbs over, it will touch the poison and the death control effect will reach 92%.
Can also be tied in the trunk of 6 meters -7 meters plastic film plastic film ring width 15 cm -20 cm more smooth plastic film the better. The artificial control of pine caterpillars is not only a good measure for the control of small and tall trees, but also an ideal method for controlling wintering pine caterpillars in parks, tourist areas, and nearby houses.
2, spray smoke prevention
In the early winter, late or cloudy days, and 20% of deltamethrin and diesel 20 times mixture spray control, the control effect was good when overwintering larvae of pine caterpillars all hatched before wintering or when the larvae started to spring in winter.
3. Control of Beauveria bassiana
100 grams of spores per gram of Beauveria bassoides spores from October to March of the following year will be used to release 8g-12g of insects per 667m2 in the pine forests. 95%.
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Product Specifications:
|
Accuracy |
±1 mm (0.04 inch) |
|
Measuring Unit |
meter/inch/feet |
|
Measuring Range (without Reflection) |
0.03-150m |
|
Measuring Time |
0.1~3 seconds |
|
Laser Class |
Class II |
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Laser Type |
635nm, <1mW |
|
Size |
45*25*12mm (±1 mm) |
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Weight |
About 10g |
|
Voltage |
DC2.0~3.3V |
|
Electrical Level |
TTL/CMOS |
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Frequency |
10Hz |
|
Operating Temperature |
0-40 ℃ (32-104 ℉ ) |
|
Storage Temperature |
-25~60 ℃ (-13~140 ℉) |
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