Are beetles beneficial insects or pests?
Beetles are common insects in crop cultivation. Because they are diverse and belong to a large family, they eat different foods. Are beetles beneficial insects or pests?
Is the beetle a good insect or a pest?
Some beetles are beneficial insects, others are pests. For example, ladybugs, carabinids, tiger beetles, and some beetles of the family Melanoidea are beneficial insects. Mite, moth, corn weevil, mung bean weevil, pea weevil, locust, ground tiger, beetle, ant, cockroach, spider, bedbug, flea, corn weevil, cotton bollworm and so on are pests. Most beetles are pests, and there are more than 200 kinds of corn and 400 kinds of apples.
Is the beetle poisonous?
There are many kinds of beetles, some poisonous, some non-toxic, such as spot boil, carabinids beetle poisonous.
1. The most poisonous beetle is the spot boil, alias "spotted cat","dragon oyster","ground gall", belonging to the genus of Coleoptera. Hydrogen cyanide released by a beetle can poison a cow. In addition to the hydrogen cyanide produced by the distal part of the abdomen, the yellow venom secreted from the joints of the feet-chelin can destroy the cell tissues of higher animals, and after contact with the human body, it can cause skin redness and foaming.
2. Carabidae beetles spray extremely irritating liquids for self-defense. Although it wasn't poisonous, the taste was indescribable. Some beetle larvae, such as firefly larvae, can release anesthetics, but they are harmless to humans because they are too small.
3, beetle toxic species are very few, basically you can see are non-toxic, like some beetle and insect larvae (that is, firefly larvae) will secrete some chemicals, will have a slight effect. There is also the Mylabris that Lu Xun once said. Melanoidea. There are also some irritants in this department, but they are not harmful and can be used as potions.
Generally speaking, some beetles are beneficial insects, some are pests, such as ladybugs, tiger beetles, dung beetles and so on are beneficial insects, longicorn beetles, elephant insects, plants, bedbugs and so on are pests.
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