Diamond back moth

antennae. The hindwings are narrow, pointed toward the apex. The tips of the wings appear to turn upward slightly when viewed from the side. In males, the upper [...] upper edge. In females, the upper two-thirds of the forewings are light ochreous and the markings are like those of the males. The back is marked with a [...] and active. Except for the first instar, which mines in the leaf tissue, the larvae are voracious surface feeders. The pupae of the diamond back moth (Plutella

Garden chafer

on roots of grasses and clover. The adults feed on the leaves of trees like oak, hazelnut and birch and on the flowers and developing fruits of, for instance [...] and fruit crops but reduces the value of ornamental plants. Life cycle and appearance of Garden chafer The life cycle of the garden chafer ( Phyllopertha [...] three pairs of legs, of which the middle and hind pairs are approximately the same length. Pupation takes place around March or April. The pupae are c

American serpentine leaf miner

roughly one hour the larva crawls out of the leaf and falls to the ground. This occurs in the early morning. The larva crawls into the ground to pupate [...] enter the plant tissue via the feeding spots. Life cycle and appearance of American serpentine leaf miner The life cycle of a leaf miner has the following [...] ovipositor, usually in the upper side of the leaf. Egg spots are oval and hard to distinguish from feeding spots. The larvae of Liriomyza trifolii are

Common asparagus beetle

appearance of Common asparagus beetle The life cycle of the asparagus beetle has the following stages: egg, 4 larval instars, a pupal instar and the adult beetle [...] larvae feed on the leaves of asparagus. As the larvae feed, they secrete a blackish fluid, consisting of faecal material, which may contaminate the plant. Life [...] General The common asparagus beetle ( Crioceris asparagi ) is a major, host-specific pest of asparagus in most asparagus producing regions of the world.

Oleander aphid

rather than eggs and that the progeny are clones of the adult female. The nymphs feed in colonies on the shoots at the top of the plant. Nymphs progress through [...] region, the origin of its principal host plant, oleander. Damage symptoms The colonies of bright yellow aphids can easily be seen on the shoots of the host [...] host plants. The damage caused by the aphid colonies is mainly aesthetic due to the large amounts of sticky honeydew produced and the resulting black sooty

Bugs

their body when at rest. The wings overlap each other exposing the scutellum, a prominent triangular region of the thorax between the wing bases. This dis [...] puncture holes. The most obvious damage is the deformation of growing points. They also cause tissue damage and deformed growth as a result of toxic substances [...] usually five nymphal instars and the adult insect. Several species of especially the families Miridae and Pentatomidae are found as pests in agricultural

Boisduval scale

be a pest of orchids, palms, pineapples, bananas and many other plants. Damage symptoms The first sign of Boisduval scale is the presence of the scales on [...] tissue at the feeding site. In orchids, this scale tends to prefer the leaf midrib and the portion of the petiole that is covered by the sheath. Small infestations [...] cast skins of the nymph form a light yellow spot near the centre of the scale called the exuvium. Adult females can produce up to 200 eggs and live up to

Black vine weevil

It belongs to the family Curculionidae. Damage symptoms The major damage is caused by the feeding of the larvae on the roots. After the roots have been [...] but reduces the value of ornamental plants. Life cycle and appearance of Black vine weevil The life cycle of the black vine weevil consists of an egg, 6 [...] temperate climates, the small (0.7 mm diameter), spherical white eggs are laid from the beginning of July until around the end of October. The larvae that hatch

Black bean aphid

caused through the transmission of plant viruses. Infestations start usually at the younger parts of the plant but can spread all over the plant. Nymphs [...] from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation [...] to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky

European red mite

generations in one year. The European red mite overwinters in the egg stage; the “winter eggs” are laid in the wooden parts of the host plants in autumn. [...] and appearance of European red mite The European red mite feeds mainly on the undersides of leaves but moves to upper leaf surfaces when the lower side becomes [...] spots (tubercles) at the base of the hairs; males are about 0.3 mm long, yellowish red, and more slender and tapered near the hind end. The development from