by Natasha
(Iowa)
What can I use to control cucumber beetles? Last year I had so much trouble with them.
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Cucumber beetles can be either striped or spotted and cause havoc not just with beetles but other vegetables, including melons.
There are a number of natural pesticides for cucumber beetles and it is best that you treat your plants as soon as you see the beetles appear to prevent them from laying too many eggs.
Neem oil soap can be used. This will kill the cucumber beetle on contact and will keep new beetles away from your plants for about two weeks.
Another natural pesticide for cucumber beetles is Pyrethrum.
The life cycle of the cucumber beetle is that they overwinter in garden trash and leaf debris and then in spring they lay their eggs in the soil around the vegetable plants. Each beetle can lay around 800 eggs and within 10 days they hatch. During a growing season you could end up with 4 generations of cucumber beetles munching on your cucumbers, pumpkins and melons.
Therefore other natural ways of controlling cucumber beetles would be to remove as much unwanted leaf debris and garden trash so that the beetles don't have places to overwinter.
Also encourage beneficial insects to your garden that feed on cucumber beetle eggs such as the lacewings, spined soldier bugs and ladybugs.
Finally, another way of controlling the cucumber beetle is by hand. Good old-fashioned hand control works well. You will find the beetles on the vegetable flowers in the early morning. If you want to go night-hunting take a torch and you will find them on the leaves. Pick them off and place them in a container.