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Question: gnawed green beans
who gnaws the leaves of my freshly sprouted beans and prevents them from growing?
I've already sown three times but it's always the same thing.
Answer: gnawed green beans
Dear Mario,
unfortunately the tender, newly developed shoots of garden plants are a feast for various types of insects. If around the known nibbles of the transparent burr, it is certainly a matter of snails, or even of slugs; both animals belong to the helicidal family, they are not insects, but molluscs with lungs, with or without the typical shell on the back; some slugs are large, and easy to see and eliminate; others, on the other hand, are tiny, a few centimeters long, and therefore they can easily feast on the plants of our garden without being seen. Insecticidal baits of various types exist on the market, even if organic if you prefer. The snail baits are spread in the ground, mixing them with the first layer of earth, or they are placed in small heaps, as they have attractive power for the snails, which eat the bait, instead of the tender leaflets.
It could also be adult oziorrinchi, or various types of ground larvae; these insects are a little more difficult to notice, as in addition to leaving no traces, they feed at night. In fact, we often find the simple advice to shake the plants attacked by insects during the night to make them fall and then kill them. Not being so easy to get up at night to go to the garden, there are also special insecticides against ground larvae, also often made up of baits, powder, granules or pellets.
Other insects can still attack the foliage, such as caterpillars, or butterfly larvae; nocturnal and diurnal butterflies lay their eggs on the shoots of some plants; when the larvae come out of the eggs, they begin to feed on the younger and more tender foliage. These caterpillars, however, should be noted by observing the plants, as they remain nested on the plants, preferably below the leaves; they are not easily seen, because they become the color of what they eat, but you should still see their dark droppings, which fall on the underlying leaves.
