Aphids

have been described, and they can be found in a variety of habitats throughout the world. Aphids form a single, very large group of insects: the super- [...] length. They have a pear-shaped body with long antennae and two tube-like structures called tubercles on their rear end. Color: Aphids can be a variety of colors [...] ion. They may also excrete a sugary substance called honeydew, which can attract other insects and lead to the growth of a black sooty mold. Aphids life

Asian citrus psyllid

citri ), is an important pest of citrus in several countries as it is a vector of a serious citrus disease called greening disease or Huanglongbing. It is [...] disease is spread when adults fly to a healthy plant and injects bacteria into it as they feed. The disease can kill a citrus tree in as little as five years [...] most affected area by the vectored disease. Damage symptoms The psyllid is a sucking insect that inserts its mouthparts into plant tissue to feed. Adults

Garden chafer

larval instars, a pupal instar and the adult beetle. Adult garden chafers ( Phyllopertha horticola ) have red-brown slightly hairy wings with a dark edge. The [...] General The garden chafer ( Phyllopertha horticola ) is a beetle from the Scarabaeidae family. It does most of its damage in the larval stage when it feeds [...] lying on the ground. Both adult beetles and larvae are polyphagous and feed on a wide variety of plant species. High populations of larvae can destroy plants

Spider mites and other mites

of the plant. The number of eggs laid by a single female can vary, and they can hatch within a few days to a couple of weeks, again depending on environmental [...] about What are mites? Plant mites are a diverse group of small arthropods that feed on plant sap. They are found in a wide variety of habitats, from forests [...] Broad mites cause a distinct type of damage known as "bronzing", which can be confused with damage caused by plant viruses. This appears as a bronze or red

Spotted Wing Drosophila

Drosophila species or SWD females by a large dark spot on each wing, where their common name is derived from. Females have a strong saw-like ovipositor that [...] increase its susceptibility to attack by other Drosophila species. D. suzukii has a wide host range, with thin-skinned berries (e.g. raspberries, blackberries [...] drosophila Adult spotted-wing drosophila are small, 2-3 mm in lengthg, and have a wingspan of 6-8 mm. Males are smaller than females. They can be easily dis

Southern European marshland pyralid

pyralid or European pepper moth (Duponchelia fovealis) is a polyphagous species feeding on a wide range of hosts from 38 plant families. They include [...] which occurs about a week later, the young larva is visible within the egg. The full-grown caterpillars are 20 to 30 mm long and have a creamy white colour [...] threshold varies considerably according to the crop: in begonia and kalanchoë a relatively small population can cause severe damage, whereas roses appear to

Vine mealybug

The prepupa and pupa stages are present only in the male. After a complete metamorphosis, a winged male emerges from the pupa. The male is smaller (1 mm) [...] voluminous, has an elongated oval shape and has no wings. The body is covered with a fine waxy material and have 18 pairs of wax rods round the edge of the body [...] longer 'tail filaments' that project at the posterior end. There is often a darker longitudinal stripe running over the body. Damage symptoms Mealybugs

Shore fly

following stages: egg, three larval instars, a pupa and the adult fly. The eggs are laid singly and are bean-shaped. A first instar larva is translucent white [...] feed on green algae. However, they can transmit plant diseases and can be a nuisance to greenhouse works by their sheer numbers. Frass deposited on leaves [...] and herbs also causes cosmetic damage, and sometimes this can occur on such a scale that growth, particularly of young cuttings, can be retarded. Life cycle

Red palm weevil

legless, pyriform with a brown head and body comprised of 13 segments. Fully grown larvae migrate to the periphery of the palms to build a solid elongated cocoon [...] and feed in the softest and most humid living tissues (growth areas) with a low to moderate proportion of fibres. Their feeding causes deterioration of [...] of the plant, which makes the red palm weevil ( Rhynchophorus ferrugineus ) a very harmful insect. Life cycle and appearance of Red palm weevil The adults

American serpentine leaf miner

American serpentine leaf miner The life cycle of a leaf miner has the following stages: egg, three larval instars, a pupal instar and the adult fly. Adult leaf [...] reduces yield. In full-grown plants of fruiting vegetable crops, however, a considerable quantity of foliage can get damaged before the harvest is affected [...] less significance. Seedlings and young plants can be completely destroyed as a result of the direct damage caused by leaf miners. In gerbera, the larva of