Plant lice

Plant lice natural remedies

There are natural remedies against plant lice, fortunately for gardeners. One of the remedies consists in trying to strengthen the presence of ladybugs in the garden, trying to limit the use of pesticides that with their poor selectivity free plants from attackers, but also exterminate useful insects, including ladybirds. Yes, because the ladybirds, scientific name Adalia bipunctata, are one of the major enemies of the aphids, an adult specimen can even devour a hundred aphids a day and when it is in the larval state even 150! Not a bad start. Also the larvae of the syrphids and of the chrysopidae (or crisope) are implacable enemies of the aphids. Chrysoperla carnea, a small wasp, lays its eggs inside the larvae and aphid adults, which they will feed on.

Plant lice how to eliminate them

If you have problems with plant lice how to eliminate them is not a problem: the remedies are not lacking: in addition to ladybirds, hoverflies, chrysopidae and Chrysoperla carnea, even birds can give a valid help against lice: the tits, for example, they are large aphid predators. Also the plants enter the field in the fight, macerated with nettle first of all (among other things it also serves against mites and molds). Following macerated pepper, another effective remedy. The mint infusion is a remedy that we could define by reflex: it is not effective against aphids, but against ants that practically breed aphids, because they are fond of the honey that these animals secrete; contrasting them helps to keep the population of plant lice under control.

Plant lice - 1

The plant lice are several thousand species, divided into three families, belonging to the Rhynchota Order. They are very small: between 1 and 3 millimeters long and stubby, with short legs, an ovoid shape, a little tapered in the front. There are both species with wings that do not have them, those that have them can also cover distances in the order of tens of kilometers. On their head there are three simple eyes. With their mouthparts that are pungent-sucking, they pierce the leaves, the young parts of the branches, the new shoots and the semi-woody trunks to suck the sap. With this action they cause leaf deformations, weaken the plant and often transmit to the virosis plants.

Plant lice: Plant lice - 2

They have thin and elongated antennas turned upwards and bent backwards which in some cases measure as much as the whole animal. Aphids are present in many colors, there are yellow, brown, red, black and even green. Generally they die in winter and only the eggs survive until the following spring, but if the winter is not cold even the adults can survive. Their "highlight" moment, in which the greatest presence occurs, is spring, followed by summer; because in spring the eggs laid in autumn open up, in addition to those that the females lay in spring and that develop by parthenogenesis (the ability of the egg to evolve even without having been fertilized). Winged forms that appear even in summer, therefore very mobile, complete the rest.