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Blister Beetle

Festering Blister Beetle

Blister beetles, as referred to, are active beetles in a large amount of numbers.

In most locations they show their best appearance in warm June and July temperatures. They are slim and lengthen up to 3/4 inches long. They carry a soft and flexible wing cover, too. Their body is mostly brown and black or dark gray and the wings may have white stripes or light colored margins.

The elders in their community eat and chew foliage and fruit growth. These are poisonous beetles and they carry venom which causes blisters if you get a defensive bite on your skin. So, keep their whereabouts well known.

The young, or larvae, create a meal from grasshopper eggs. So if you defend against the adults of the blister beetles you can maintain benefits that the blister beetle larvae may encounter.


Blister beetles cause damage to landscapes ONLY on a rare basis. Their best advantage is when they battle their prey on insect pests. However, on an occasion they can swarm together and cause serious damage to beautiful plants and ruin its blossoms.


The obvious way to control these characters is by handpicking with protective gloves to destruction. Other occasions while they are in large numbers, spray the plants where they spend time with pyrethrum. One pint of pyrethrum mixed with one tablespoon of isopropyl rubbing alcohol will give the spray a strict movement to paralyze the blister beetles on contact. Apply twice from three to four days apart without damaging the plants.

During winter months the blister beetle pupae will rest in your soil which also gives a chance to battle their awareness.

These aren't your worst insects, although in large numbers they can be harmful. 

Keeping Orioles, Bluebirds, and Chickadees near with a nice atmosphere gives them a chance to make appetizers with blister beetles.



"You will find the best ways to control these beetles that many find in different amounts of numbers."

~D. Ezell


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