• Beetles

  the same food as the adults. The pupae do not make a cocoon and will already display many similarities with the adults. The adult beetles usually possess [...] that is, the larvae do not resemble the adult at all, and must pass through a pupal instar before reaching the adult stage. Larvae have biting mouthparts [...] eliminate beetle larvae in the soil, while traps help monitor and reduce adult beetle populations. With Koppert’s biological solutions for beetles, professional

• Lyprauta

  cycle and appearance of Lyprauta The adults of the three species can be distinguished by the wing pattern of adults. Adults of P. trinidadensis have a variation [...] over their wings. Adults of L. cambria have a large dark-coloured mark on the apical wing parts as well as two smaller marks. Adults of L. chacoensis have [...] brown or reddish. The pupae are white to yellow and embedded in a dense web. Adult flies are long and slender and have a dark brown head with short antennae

• Common asparagus beetle

  the following stages: egg, 4 larval instars, a pupal instar and the adult beetle. Adult common asparagus beetles ( Crioceris asparagi ) have a shiny blue [...] asparagus in most asparagus producing regions of the world. Damage symptoms Both adults and larvae feed on the leaves of asparagus. As the larvae feed, they secrete [...] brown legs. When fully grown, the larvae drop to the ground to pupate. The adult stage overwinters and starts a new cycle next spring.

• Chafers

  many plants. They are a serious pest that can cause substantial damage. The adults are not harmful. Damage symptoms Larval feeding on the roots can lead to [...] digging for the grubs to eat them. Life cycle and appearance of Chafers Adult Amphimallon sostitialis are 14-18 mm long and yellowish chestnut brown. [...] is somewhat smaller; about 13-15 mm long and reddish-brown in colour. The adult beetles fly in the evening, generally in June and July and land on trees

• Corn rootworm

  damage. Adults may also be found on Poaceae, Asteraceae, Fabaceae and Cucurbitaceae. Damage symptoms Damage is caused by both larval and adult feeding [...] This causes a typical gooseneck-like shape also called goose necking. The adults, feeding on the silk of the female flowers, can cause flower abortion and [...] reduce the number of seeds. During the milk and dough stages of maturity, the adults may also feed on the kernels. This does not usually result in heavy yield

• May beetle

  beetle The adults belonging to the majority of Phyllophaga species are very similar in terms of their external appearance. In short, the adults have a r [...] is the Phyllophaga . Given the external physical similarities between the adults and larvae of this genus, they are usually treated as a single group, sharing [...] 10 to 25 cm in size, depending on the particular species. Just like the adults, the Phyllophaga larvae or grubs look similar, with their key features being

• Cabbage looper

  close to adult emergence. Finally, the adult has a mottled grayish-brown colour with a silvery figure eight pattern on the forewings. Adults can survive [...] severely defoliated and stunted. Life cycle and appearance of Trichoplusia ni Adults can deposit up to 300 eggs on the underside margins of the upper leaves

• Crane flies

  own, and 2.5 cm long. After adults emerge, part of the pupal case can be found sticking out above the soil surface. Adult common crane flies emerge from [...] (which they pull into the ground of mainly grasses and cereal crops. The adults do not cause any damage. Damage symptoms Larval feeding causes brown spots [...] on larvae and digging up turf. Life cycle and appearance of Crane flies Adult crane flies are large flies with females reaching 45-50 mm across. They have

• Tarnished plant bug

  almost completely black with yellow markings. Adults that have overwintered are typically darker than summer adults. Regardless of colour, all lygus bugs have [...] and destroying favourable overwintering sites. Damage symptoms Lygus bug adults and nymphs attack the seeds, buds and flowers of plants, piercing them with [...] soft rot and ring rot. Life cycle and appearance of Tarnished plant bug Adult Lygus lineolaris are true bugs that can grow up to 6.5 mm in length and are

• Orius insidiosus

  mouthparts with which they feed on thrips and other small insects. Adult stage : Adult Orius insidiosus are small, elongated insects, about 2-3 millimeters [...] strategies in various agricultural and horticultural crops worldwide. Both adults and nymphs are voracious predators, capable of piercing and feeding on the [...] and the body contents are consumed. All stages of thrips are preyed on. Adult females can eat about 20 Western flower thrips ( Frankliniella occidentalis)