Leek moth

fall of the flowers where moth larvae have eaten the floral peduncles. Life cycle and appearance of Leek moth The leek moth ( Acrolepiopsis assectella [...] ) goes through eight stages, namely egg, five larval stages, a pupa and the adult moth. The eggs are small, white and elliptical and are laid singly on [...] are uniformly grey. The moth are active at night and rest during the day. Development time is temperature dependent. At 25°C, eggs hatch after 3-4 days.

Goat moth

the abdominal segment. The moths fly at night in June or July and lay eggs on tree trunks in batches of up to 50. After the eggs hatch, the larvae bore into [...] General The goat moth ( Cossus cossus ), is a pest of broad-leafed trees. It is most often found in birch, ash, willow and elm but can also attack fruit [...] goat-like smell. Trees eventually die. Life cycle and appearance of Goat moth The wingspan of the adults is 70-100 mm; body and wings are dull greyish

Cabbage moth

value of infested crops. Life cycle and appearance of Cabbage moth The adult cabbage moth (Mamestra brassicae) has grey-brown to black forewings, with a [...] brown. The moth flies only at dawn and dusk, hiding in the crop during the day. Several days after emerging from their pupae the female moths lay clusters [...] clusters of 20 to 100 eggs on the underside of leaves or elsewhere within the greenhouse structure. The eggs are initially light and translucent, becoming steadily

Tomato moth

tomato moth (Lacanobia oleracea) deposit their spherical eggs on the underside of leaves in groups of 50 to 300, often arranged in layers. The eggs are greenish [...] fruit than the first. Life cycle and appearance of Tomato moth The forewings of adult tomato moths (Lacanobia oleracea) are a reddish-brown with a feint light [...] General The tomato moth (Lacanobia oleracea) is a particularly a pest in greenhouses but can also inflict damage on outdoor crops. It is a polyphagous

Diamond back moth

seeds. Life cycle and appearance of Diamond back moth The oval and flattened eggs of the diamond back moth (Plutella xylostella) are initially yellow or pale [...] or more light-coloured diamonds, thus the common name diamond back moth. The moths are weak fliers and can disperse, on average, only 13 to 35 m within [...] General The diamond back moth (Plutella xylostella) belongs to the family of Plutellidae . It only attacks Brassicaceae species, including cruciferous

Oak processionary moth

processionary moth ( Thaumetopoea processionea ), is a major pest of oak in many European countries. The common and scientific names of this moth refer to the [...] emerge and fly between the end of July and mid September. The eggs (with up to 300 eggs per batch) are laid in contiguous rows along one to two year old [...] the behaviour of the larvae to form long processions. The moth is native to central and southern Europe but is now present in almost all European countries

Silver-Y moth

General The silver-Y moth ( Autographa gamma ) is a migrant moth that appears in northern parts of Europe until November, migrating back to southern Europe [...] of growing points. Life cycle and appearance of Silver-Y moth The forewings of the silver-Y moth ( Autographa gamma ) have varied markings, from different [...] lays up to 2,000 eggs on the underside of the leaves of their host plant, usually separately but sometimes in small groups. These eggs are a greyish white

Caterpillar control in greenhouse crops

trees. Important species include light brown apple moth ( Epiphyas postvittana ) and carnation tortrix moth ( Cacoecimorpha pronubana ). Lepidopteran biology [...] biology is largely comparable. Females lay eggs on leaves either in groups or individually. After leaving the egg, caterpillars then feed and moult. Once [...] n) can be applied at egg hatch as a moulting accelerator insecticide, to control the larvae of codling, tortrix and winter moths. For more extensive outbreaks

Box tree moth

cycle and appearance of Box tree moth The female box tree moth ( Cydalima perspectalis ) deposits clusters of 5 to 20 eggs in a translucent gelatinous mass [...] the box tree moth ( Cydalima perspectalis ) poses a serious threat as invasive species. Damage symptoms The larvae of the box tree moth ( Cydalima pe [...] forewings. The adult moths are good flyers. During daytime, they rest on the box trees or on other surrounding plants. The box tree moth ( Cydalima perspectalis

Pine processionary moth

processionary moth cause severe defoliation, reducing the viability of oak trees. Life cycle and appearance of Pine processionary moth The female moth has a wingspan [...] females oviposit on the nearest pines. The eggs are laid in cylindrical masses around pairs of needles; most eggs masses are laid on the peripheral shoots [...] shoots of the crown and contain 70-300 eggs. After 30-45 days, the eggs hatch. The larvae aggregate in colonies and spin silken nests, which enlarge until the