Like all plants, chilli also is subject to attack by phytophagous insects or parasites.
A real 'plague' is certainly the aphids but also other insects may be particularly harmful. However, nature provides us with the valuable allies, insect predators. Below we will cite only some of the most useful and harmful insects.
The Ladybug is without doubt the best ally in the fight against aphids, mites and various insects. It has a remarkable voracity. In the adult state can reach to eat up to 100 aphids in a day.
The Hoverflies are excellent pollinators because they feed with nectar, honeydew and pollen. Their larvae are active predators of aphids and other phytophagous insects. Are similar in appearance to wasps, but belong to the Diptera order.
The Crisope are a family of insects of the order Neuroptera. The larvae are nocturnal predators of aphids, mites, eggs and larvae of other insects.
The Anthocorid are predatory insects belonging to the order of Rincoti, they're especially active against mites, aphids, eggs and larvae of other insects.
The Cryptolaemus montrouzieri is a coccinellid, but unlike ladybugs in bright colors, the body has a brown-orange color. The larvae are covered with white waxy substance. Excellent predator of mealybugs, but in the absence of them they also willingly feeds on aphids. The ability of predation is high and leads to a complete elimination of the pest.
Aphids, or plant lice, are insects from the extraordinary reproductive development. If left unchecked, quickly contaminating the entire plant leading her to death, or almost. They feed with the sap by subtracting energy to the plant. The sap is rich in sugars and the surplus is expelled in the form of honeydew, smearing the leaves of sugar drops. Fungi grow well, the so-called "sooty mold" that may hinder the photosynthetic activity.
The Mites belonging to the family of arthropods of the class of arachnids. They feed on pricking the surface of the leaves, feeding on the cells that make up the leaf blade. The attack by mites is manifested by a general loss of vigor of the plant. We can also observe the characteristic discoloration of the leaves, which tend to become bronze and then to fall.
The Thrips are phytophagous insects that feed on the sap, sucked from the leaves, flowers, fruits and young shoots. They enter saliva with phytotoxic effects. They cause discoloration on the leaves, in the fruits often results in the appearance of areas commonly known as rust or scabies. On shoots cause developmental abnormalities such as atrophy, deformation, etc.. Also transmit phytopathogenic agents such as viruses and bacteria.
The Aleyrodidae or whiteflies belongs to the phytophagous insects, causing damage amounting to the aphids, more or less the same way. They are located on the underside of the leaves, so is difficult to combat them with the use of insecticides. A predator of whiteflies are Miridi, but them can also cause damage to plants.
The Lepidoptera known as butterflies and moths. At the stage of larvae or caterpillars, they feed with leaves, flowers and fruits, thus causing considerable damage.