• Northern Corn Rootworm

  the northern corn rootworm is the most common species found on corn. While adult Diabrotica barberi can feed on a variety of plants, their larvae survive [...] corn crop yearly with another plant (typically soybean). Damage symptoms Adult northern corn rootworm beetles feed on the foliage, pollen, silks and developing [...] straighten themselves. Life cycle and appearance of Northern Corn Rootworm Adult Diabrotica barberi beetles are between 5–6 mm long and uniformly pale green

• Cyclamen mite

  cyclamen mite ( Phytonemus pallidus ) has the following stages: egg, larva, and adult. However, pharate females remain in their larval skin until they emerge. [...] often considered a fourth stage called pupa, false pupa or quiescent nymph. Adult females are yellowish brown, about 0.25 mm long, with the hind legs reduced [...] pharate females. Eggs of the cyclamen mite are about half the size of the adult mite. They are oval in form, smooth, transparent and twice as long as they

• Aphelinus abdominalis

  Host feeding plays an important role in reducing pest numbers, with the adult wasp piercing the aphid with her ovipositor, and sucking it empty without [...] roughly equal measure. Life cycle and appearance of Aphelinus abdominalis An adult Aphelinus abdominalis is 2.5 to 3 mm in length, with short legs and short [...] colour. A parasitized aphid hardens to become a leathery, black mummy. The adult wasp appears through an irregularly serrated hole at the posterior end of

• Two-spotted spider mite

  greenhouses and many outdoor crops. Spider mite damage Larvae, nymphs and adults cause damage to the host plant by feeding on plant sap. They mainly occur [...] damage of the leaf surface can lead to loss of the crop. The nymphs and adults also produce webs, and plants can get completely covered with such webs [...] two-spotted spider mite Two-spotted spider mites are small and have eight legs. Adult females are about 0.5 mm long. They have an oval body that is rounded at

• Black vine weevil

  larval instars, a pupal instar and the adult beetle. In temperate climates in the Northern hemisphere, the first adult weevils appear around May. They are [...] Larvae can also feed above ground within the stems of the plants. Both adult beetles and larvae are polyphagous and feed on a large number of plant species [...] more resistant to damage than young plants or just planted cuttings. The adult beetles are only active at night, taking round bites out of the leaves, starting

• Yellow rose aphid

  The yellow rose aphids usually live in young unfolded leaves. Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones [...] Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place [...] a bright green abdomen with black dorsal markings. The size of wingless adults is 1.2-2.5 mm, winged specimens are 1.4-2.2. mm

• Click beetles

  more severe in young plants. Life cycle and appearance of Click beetles Adult Agriotis sp. are 6-10 mm long and yellowish brown to black. The eggs are [...] to 5 years. When fully grown the larvae pupate in the soil in summer. The adults appear about 4 weeks after pupation, but usually remain in the soil until

• Thripor-I

  thrips . Crops Do not use in tomato. Mode of action Adults and nymphs pierce thrips larvae and adults with their sucking mouthparts and suck out the contents [...] the body contents of its prey leaving only the empty skin. Pack size 2,000 adults and nymphs. Presentation 100 ml bottle. Carrier Vermiculite. Application

• Miglyphus

  Pests Leaf miners ( Lyriomyza spp.). Mode of action Adult female parasitic wasps of Diglyphus isaea kill second and third instar leaf miner larvae in the [...] inside the mine (but outside the leaf miner), using the dead larvae as food. Adult females also kill young leaf miner larvae by using them as a food source [...] larvae. Older larvae and pupae are visible through the leaf. Pack size 500 adults. Presentation 100 ml bottle. Carrier None. Application Release parasitic

• Lesser house fly

  hen houses, making them a particularly annoying deterrent for employees. Adult flies can spread many different pathogens from contaminated breeding sites [...] medium-sized to small flies with dark bodies and legs. When the flies mate, adult males will form swarms in areas with still air out of direct sunlight where [...] larval form, and the flies develop for another week before emerging as new adults. The lesser house fly ’s full life cycle generally takes between 18–22 days