What kind of insect is the white grub? Introduction to white grub control methods
What is a white grub? How do you control white grubs? Is there any netizen who can help advise? The white grub, commonly known as white soil silkworm or white ground silkworm, is the general name for the larvae of scarab beetles. The larvae mainly damage underground roots and fruits, biting through the roots and stems of seedlings and causing the seedlings to wither and die. If not controlled in time, it will cause missing plants and broken rows. Therefore, Zhongdi Network has compiled...
What is a white grub? How do you control white grubs? Is there any netizen who can help advise?The white grub, commonly known as white soil silkworm or white ground silkworm, is the general name for the larvae of scarab beetles. The larvae mainly damage underground roots and fruits, biting through the roots and stems of seedlings and causing the seedlings to wither and die. If not controlled in time, it will cause missing plants and broken rows. Therefore, Zhongdi Network has compiled the control methods for white grubs, listed in detail below for netizens' reference.
Method 1:When plowing, use 2~3 kg of 5% chlorpyrifos granules per mu mixed with 20~30 kg of sandy soil to make poisoned soil and broadcast it on the surface; or use 250~300 mL of 40% chlorpyrifos emulsifiable concentrate per mu to irrigate the ground, killing the eggs and preventing a major outbreak of the pest.
Method 2:At the first watering and fertilization of the crop, use 250~400 mL of 40% chlorpyrifos emulsifiable concentrate per mu and apply it with the irrigation water to ensure effective killing of the larvae.
Method 3:Spray 40% chlorpyrifos emulsifiable concentrate at a 500~800 times dilution on the ground edges where adult white grubs are active and on trees, during the peak emergence period of adults before egg laying.
Method 4:Deep plowing and fine harrowing, intertillage weeding, timely watering, and not applying undecomposed organic fertilizer can all reduce the density of white grubs and other underground pests.
Method 5:During the peak period when adult white grubs emerge from the soil, cut fresh elm branches into 50~70 cm lengths, evenly spray them with 40% chlorpyrifos emulsifiable concentrate at a 500~800 times dilution, and insert 4~5 bundles per mu.
Method 6:In the evening, choose areas under trees where there are relatively many adult white grubs, pile up combustible materials such as crop straw or dry grass, light them, and shake the tree trunk; the adults will then fly into the fire.
Method 7:The peak hatching period of white grubs and the young larval stage can be the best period for chemical control. Use 2~3 kg of 5% chlorpyrifos granules per mu, mix evenly with soil, and apply in furrows, then cover with soil and water once; or use 380~400 mL of 40% chlorpyrifos emulsifiable concentrate per mu mixed with 20~30 kg of furnace slag or coarse sand and apply in furrows or as a root drench, then water immediately after application, which can effectively control the damage of white grubs.
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