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This article was co-written by Ben Barkan. Ben Barkan is a landscape and garden design expert, owner, and founder of HomeHarvest LLC, a construction and landscape design business in Boston, Massachusetts. Ben has over 12 years of organic garden design experience, specializing in landscape design and construction with custom textures and creative planting combinations. He is a sustainable agricultural design expert, licensed to supervise construction in Massachusetts and licensed as a home improvement contractor. He holds a degree in sustainable agriculture from the University of Massachusetts Amherst.
This article has been viewed 6,891 times.
These are small, white, worm-shaped larvae of some insects, most notably the Japanese beetle, the watermelon beetle, and the European beetle. When they grow up, the larvae will eat grass roots, causing the grass to die and form brown patches on the lawn. To get rid of beetle larvae, it is important to determine the type of larvae you are dealing with, as this will determine the method of eradication.
Steps
Kill larvae by natural methods
- Holes in the grass dug by birds and other mammals to hunt larvae
- The grass has lost its roots
- Soft feeling to the touch or step on the lawn
- Dig a small space (30 cm x 30 cm) where the dead grass meets the green grass
- Dig about 5 cm deep
- Look for C-shaped bugs that have legs inside their bodies, located near their heads
- If you see these bugs, there are larvae
- It is not necessary to eradicate the larvae if you find less than 5 in an area of 30 cm x 30 cm.
- If you find more than 5 but less than 10 larvae in the above area, you only need to treat when the lawn is not green.
- Regardless of the condition of the lawn, you will still have to get rid of the larvae if you find more than 10 in an area of 30 cm x 30 cm.
- For best results, use in the evening and water immediately afterwards. [5] X Research Sources
- This worm needs to enter the larva’s body to reproduce, so you need to choose between two methods: using roundworms or insecticides.
- This worm can be sold under the name Hb nematodes, and you can buy it at garden stores, through an ad or online.
- You can mix this product with water and spray it on your lawn, or sprinkle dry powder on the grass.
- As with beneficial nematodes, you will have to choose between Bacillus popilliae or chemical insecticides, since then the bacterial spores will have no effect on reducing the number of larvae. [6] X Research Sources
- You can distinguish Japanese beetle larvae from other types of larvae by their tails. Most larvae are rounded at the tail, but Japanese beetle larvae have pointed tails.
- Clear dead weeds on patches of grass that turn brown in spring and fall. Water the grass, then sprinkle new seeds over the dead grass. [7] X Research Sources
- After re-seeding, you should fertilize to restore dead patches of grass and stimulate new grass seeds to grow.
- Maintain the height of the grass about 5 cm. Raise the blade of the lawn mower to increase the height of the grass while mowing. [8] X Research Sources
- Many beetles lay eggs in July, so it is very important to keep the lawn dry during July and August. [9] X Research Source
- Beetles will avoid laying eggs on dry lawns, so you should also consider not watering the lawn in the last week of June.
Treatment of larvae with synthetic insecticides
- Look for signs of larvae in the lawn such as holes, rootless patches of grass, patches of brown grass and soft loose soil.
- To determine for sure there are larvae, dig a plot of soil about 30 cm x 30 cm, about 5 cm deep and look for larvae.
- There is no need to treat the lawn if there are fewer than 5 larvae, and also avoid treatment if the lawn is still green and you find less than 10. If there are 10 or more larvae, treat the lawn.
- Water the lawn both before and after spraying the insecticide to ensure that the chemical penetrates the soil where the larvae are located.
- Spray a therapeutic insecticide on the lawn during the fall, spring and before May.
- You can find insecticides at home stores.
- Be sure to wear gloves, a mask, and other protective gear when spraying pesticides.
- Try to protect pollinating insects (such as bees) from pesticides. Trim weeds to get rid of weeds that bloom before applying pesticides. [11] X Trusted Source Michigan State University Extension Go to Source
- To prevent grass from burning, you need to water the lawn carefully throughout the summer after spraying pesticides.
- Preventive insecticides are sold under the trade names Merit and Mach 2.
Advice
- Plant other herbs and greens in the garden such as rosemary, mint, garlic, marigold, and marigold as they can inhibit the growth of insects such as beetle larvae.
- The lotus can attract bees and bugs. If you want to grow this plant, it should be planted around the edge of the garden so that insects cannot attack other plants.
Warning
- When spraying pesticides, be sure to use any protective equipment according to the manufacturer’s instructions, which may include long pants, long-sleeved shirts, gloves, goggles, boots, protective masks.
- Always read instructions for use and warnings on product labels carefully before spraying pesticides. Follow the recommended dosage and be careful in handling technique.
- Wash your hands, face, and clothes immediately after applying pesticides. Do not eat, drink or smoke while using pesticides or until after thorough cleaning.
This article was co-written by Ben Barkan. Ben Barkan is a landscape and garden design expert, owner, and founder of HomeHarvest LLC, a construction and landscape design business in Boston, Massachusetts. Ben has over 12 years of organic garden design experience, specializing in landscape design and construction with custom textures and creative planting combinations. He is a sustainable agricultural design specialist, licensed to supervise construction in Massachusetts and licensed as a home improvement contractor. He holds a degree in sustainable agriculture from the University of Massachusetts Amherst.
This article has been viewed 6,891 times.
These are small, white, worm-shaped larvae of several insects, most notably the Japanese beetle, the watermelon beetle, and the European beetle. When they grow up, the larvae will eat grass roots, causing the grass to die and form brown patches on the lawn. To get rid of beetle larvae, it is important to determine the type of larvae you are dealing with, as this will determine the method of eradication.
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