Beetles

orders and displays an enormous variety of form, size and habit. A number of species are a serious pest in crops or stored products. There are many useful [...] aphids . Beetles undergo a complete metamorphosis, that is, the larvae do not resemble the adult at all, and must pass through a pupal instar before reaching [...] The pupae do not make a cocoon and will already display many similarities with the adults. The adult beetles usually possess a pair of membranous wings

Flowering potted plants

houseplants in countries with colder climates. Kalanchoe is a tropical, succulent flowering plant and a genus that consists of about 125 species belonging to [...] large red, white and green leaves, especially around Christmas. Begonia is a perennial flowering plants and belongs to the family of Begoniaceae . The genus

Green peach aphid

native, however it is now a pest with a world-wide distribution. The green peach aphid ( Myzus persicae subsp. persicae ) is a particularly polyphagous [...] glossy. Winged individuals have a brown-black head and thorax and a yellow-green to green or even reddish abdomen. They have a dark brown spot on the abdomen [...] appearance of green peach aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. When reproduction

Potato aphid

but is these days distributed throughout the world. It is a highly polyphagous species with a preference for Solanaceae (particularly potato), but has also [...] appearance of Potato aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. When reproduction [...] presence in the crop. The adult potato aphid is a large, slender aphid with long, green cornicles, long legs, and a long cauda. Adults are usually green, but

Tomato looper

The caterpillar passes through 6 instars. It has a green head capsule and a yellowish-green body with a clear yellow longitudinal stripe on either side [...] tomato fruit, often in a bunch of ripening tomatoes, however, it can also be found in the soil. The pupa has a pale green body, with a dark brown ventral dorsal [...] dorsally. The body is sparsely covered with a few stiff hairs. In older caterpillars , each segment has a clear black dot above the lateral yellow lines

Broad mite

case of a mild infestation, one can often see brown, frequently collapsed spots, or brown stripes forming a fine network on the leaves. In case of a more [...] latus) are not a serious problem, as they are unable to overwinter. Mites belonging to the family of tarsonemids ( Tarsonemidae ) display a greater diversity [...] discoloured, and with a severe attack, deformed. Extensive damage can be caused by relatively low populations. Frequently, the lower leaves of a plant remain

Tobacco aphid

matt, never glossy. Winged individuals have a brown-black head and thorax and a reddish abdomen. There is a dark brown spot on the abdomen and several [...] appearance of Tobacco aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. When reproduction [...] nicotianae ) probably evolved from the peach potato aphid in the Far East and is a key pest of tobacco crops in both the United States and South America. The

Glasshouse potato aphid

the cornicles. Alate (winged) females are yellow-green, with a brown head, a dark thorax and a dark abdomen that has pale to dark transverse bands. The body [...] cycle Glasshouse potato aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. When reproduction [...] oval in shape. It has a light yellow-green to brown-green colour, and has an overall shiny appearance. Antennae are marked by a number of darker bands

Greenhouse whitefly

symptoms The larvae of whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and [...] flattened on the leaf. The fourth larva stadium develops into a white, oval case encircled by a ring of erect waxy rods. This is called the pupa stadium and [...] larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking out the sap from the plant leaves and secreting

Stable fly

even having a four-striped thorax. However, they are light grey in colour; they have a broader abdomen that displays several dark spots in a “checkerboard” [...] males. Females require a blood meal just prior to egg laying and never lay eggs before their third-ever feeding (on average, a fly must feed four times [...] General Stable flies belong to the genus Stomoxys , Latin for “sharp mouth”; a fitting moniker, as these flies are the only members of the Muscidae family