Q. Recently I discovered some white round worms or grubs in my soil when I was planting. What are they and what can I do to get rid of them? Will they feed on the roots of the plants and kill them? Do you have any idea where they came from?
A. It is hard to tell without seeing what they actually are. There are some grubs which have six legs on the front and are grayish white which we see a lot of in decaying organic matter. They It is hard to tell without seeing what they actually are.
There are some grubs which have six legs on the fun and are grayish white which we see a lot of in decaying organic matter. They can also feed on the roots of some plants usually herbaceous plants like vegetables and herbs flowers and that kind of thing. These are frequently larvae of beetles rather than moths. And because they are larvae of beetles they will not be controlled by a very many organic chemicals.
If plants are present than you can use a soil insecticide drench of things like pyrethrum or a heart are pesticide such as Sevin as a liquid drench. If the soil does not have plants than you can loosen the soil, moisten the soil, cover it with plastic and let it cook and the sun making sure that the edges of the plastic or sealed tightly to the ground so that they do not escape. By now they probably have stopped feeding and have pupated, turning into adult beetles and will emerge to mate with other adults. By this time there feeding damage has probably stopped.
After mating the female then lays eggs in well prepared garden soils or compost where the young hatch and feed on decaying organic matter and soft tender roots of plants. I hope this helps. Above is a picture of one of the grubs I’m talking about.
And because they are larvae of beetles you will not have as many organic controls available to you. If plants are present then you can use a soil insecticide drench. Things like pyrethrum, an organic pesticide, or a hard pesticide such as Sevin can frequently be found as a liquid drench.
If your soil does not have plants then you can loosen the soil with a spade, moisten it, cover it with plastic and let it cook in the sun making sure that the edges of the plastic or sealed tightly to the ground so that the heat does not escape. This is called soil solarization.
By now they probably have stopped feeding and have pupated, turning into adult beetles and will emerge to mate with other adults during this summer. By this time their feeding damage has probably stopped.
After mating the female then lays eggs in well prepared garden soils or compost where the young hatch and feed on decaying organic matter and soft tender roots of plants. Readers of my newsletter and blog will see what this grub looks like and get more information.
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| Grubs found in compost |
There are some grubs which have six legs on the fun and are grayish white which we see a lot of in decaying organic matter. They can also feed on the roots of some plants usually herbaceous plants like vegetables and herbs flowers and that kind of thing. These are frequently larvae of beetles rather than moths. And because they are larvae of beetles they will not be controlled by a very many organic chemicals.
If plants are present than you can use a soil insecticide drench of things like pyrethrum or a heart are pesticide such as Sevin as a liquid drench. If the soil does not have plants than you can loosen the soil, moisten the soil, cover it with plastic and let it cook and the sun making sure that the edges of the plastic or sealed tightly to the ground so that they do not escape. By now they probably have stopped feeding and have pupated, turning into adult beetles and will emerge to mate with other adults. By this time there feeding damage has probably stopped.
And because they are larvae of beetles you will not have as many organic controls available to you. If plants are present then you can use a soil insecticide drench. Things like pyrethrum, an organic pesticide, or a hard pesticide such as Sevin can frequently be found as a liquid drench.
If your soil does not have plants then you can loosen the soil with a spade, moisten it, cover it with plastic and let it cook in the sun making sure that the edges of the plastic or sealed tightly to the ground so that the heat does not escape. This is called soil solarization.
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| Green june beetle on kadota fig |
After mating the female then lays eggs in well prepared garden soils or compost where the young hatch and feed on decaying organic matter and soft tender roots of plants. Readers of my newsletter and blog will see what this grub looks like and get more information.
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