Broad mite

indication of an attack of broad mite ( Polyphagotarsonemus latus ), is the appearance of dark brown edges at the base of young leaves. In case of a mild [...] caused by viruses. The typical pattern of damage consists of malformation and distortion of the above-ground growth of the plant. The mites show a preference [...] undersides of young, expanding leaves. Symptoms of an attack remain visible several weeks after the mites have been removed. Life cycle and appearance of Broad

Sciarid flies

at risk. Life cycle and appearance of Sciarid flies The life cycle of sciarid flies has the following stages: egg, four larval instars, a pupal instar [...] prefer damp areas in dark places, with a lot of organic material. They occur the whole year round. The eggs are minute (0.1 to 0.25 mm) and yellowish white [...] General Sciarid flies constitute the family of Sciaridae. The species that cause most damage to crops belong to the genera Bradysia and Lycoriella . Lycoriella

Caterpillar control in greenhouse crops

available for monitoring adults of several species. Installing a range of different traps in problem areas at the beginning of the season can help with id [...] applied at egg hatch as a moulting accelerator insecticide, to control the larvae of codling, tortrix and winter moths. For more extensive outbreaks of larger [...] belong to the Noctuidae, which is the largest of all the lepidopteran families. Their forewings are mostly shades of brown and grey, whilst the hindwings can

Carnation tortrix

spectrana ). Each female of the carnation tortrix ( Cacoecimorpha pronubana ) is capable of laying up to 700 eggs, deposited in batches of 10 to 200 on the upper [...] upper surface of leaves or on other greenhouse materials. At first, the eggs are a light green colour, later becoming yellow. They have a flattened oval [...] Cacoecimorpha pronubana ) is a Mediterranean species belonging to the family of Tortricidae . It occurs in the Middle East, North Africa, the USA, Europe

Western flower thrips

adult insect. The eggs of the western flower thrips (Frankliniella occidentalis) are laid in leaves, flower petals and in the soft parts of stalks. They are [...] leaves and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations [...] cycle and appearance of Western flower thrips The western flower thrips (Frankliniella occidentalis) develops in six stages: egg, two larval instars, prepupa

Tomato moth

second generation of larvae often causes greater loss of fruit than the first. Life cycle and appearance of Tomato moth The forewings of adult tomato moths [...] grey-brown. The females of the tomato moth (Lacanobia oleracea) deposit their spherical eggs on the underside of leaves in groups of 50 to 300, often arranged [...] inflict damage on outdoor crops. It is a polyphagous species feeding on plants of 14 families including crop species such a tomato, sweet pepper, lettuce, brassicas

Bean seed fly

Adult flies lay eggs near the base of bean plants, and upon hatching, the larvae burrow into the soil and feed on the seeds and roots of young plants. Larvae [...] significant damage. Presence of larvae: Small, white maggots near the base of affected bean plants. These larvae are a clear indicator of bean seed fly infestation [...] Thirdly, search for the presence of larvae. Small, white maggots near the base of affected bean plants are a clear sign of bean seed fly infestation. Finally

Spidex Vital lives up to its promises

and as they lay their eggs earlier, the population develops more rapidly.’ A sense of calm on the farm The increased effectiveness of Spidex Vital is a major [...] problems in cucumbers. The ability of Spidex Vital to tackle spider mites and hot-spots effectively brings a sense of calm to the farm.’ He states that [...] game changer in spider mite control. It changes the rules of the game and is even more in control of spider mites . And the grower reaps the benefits.’

Black vine weevil

plants. Life cycle and appearance of Black vine weevil The life cycle of the black vine weevil consists of an egg, 6 or 7 larval instars, a pupal instar [...] within the stems of the plants. Both adult beetles and larvae are polyphagous and feed on a large number of plant species. High populations of larvae can destroy [...] 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 have a white

Bugs

insects. Their life cycle consists of an egg, usually five nymphal instars and the adult insect. Several species of especially the families Miridae and [...] obvious damage is the deformation of growing points. They also cause tissue damage and deformed growth as a result of toxic substances that they inject [...] Heteropteran bugs form a group in the order Hemiptera , a highly diverse group of insects, containing both harmful and beneficial species. Heteropteran bugs