• Cottony cushion scale

  produced by the scales coat the leaves, blocking the stomata and impeding gas exchange. Sooty moulds grow on the honeydew, blocking the light from the leaves [...] lengthwise over the surface. The ovisac may reach the same length as the body, giving an overall combined length of up to 20 mm. The 'females' are actually [...] months. After leaving the egg sac, the crawlers settle along the midribs and veins of the leaves. The next two instars migrate to the larger twigs and branches

• Cabbage moth

  to black forewings, with a kidney-shaped white-rimmed marking in the middle. The hindwings are light brown with a rather inconspicuous spot in the middle [...] thorax are grey-brown with white spots, and the abdomen is a pale, greyish brown. The moth flies only at dawn and dusk, hiding in the crop during the day [...] their pupae the female moths lay clusters of 20 to 100 eggs on the underside of leaves or elsewhere within the greenhouse structure. The eggs are initially

• Tomato moth

  gradually turns a glossy black. The moths are nocturnal, hiding during the day in fissures in the ground, and are often only seen when they are startled, such as [...] As in most noctuid moths, the hindwing is greyish and lighter than the forewing, with a darker shadow at the margin. The antennae are long and thin. Head [...] Head and thorax are reddish-brown while the abdomen is a lighter grey-brown. The females of the tomato moth (Lacanobia oleracea) deposit their spherical

• Control spidermite with Phytoseiulus in soft fruit

  May 8, 2019

  crops. Control of spider mite control is achieved with the use of predatory mites , the most effective being Phytoseiulus persimilis ( Spidex ). This product [...] soon as the first spider mites are found in the crop. Adult Phytoseiulus will feed on all stages of spider mites, and reproduce faster than the pest at [...] spidermite. Due to the wide variety of growing systems in UK soft fruit crops, the introduction rates for Phytoseiulus differ according to the particular crop

• Western flower thrips

  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 inserted [...] buds. Compared to the prepupa, the pupa has longer, more developed wing buds and longer antennae that are curved back over the head. The prepupal and pupal [...] causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black dots of their excreta indicate their presence in the crop

• Mottled arum aphid

  sexual stage in the life cycle. Wingless females of the mottled arum aphid are shiny whitish, yellowish or green with black cross bands behind the head, broken [...] along the midline, and a large horseshoe-shaped spot on the back of the abdomen. These black markings can be highly variable. Adult females are 1.2-2.6 [...] Immature Neomyzus circumflexus are usually the same background colour as their parents, but they lack the characteristic black markings.

• Garden chafer

  just above the soil surface are very characteristic for the garden chafer ( Phyllopertha horticola ). These flights are carried out by the males, who mate [...] of legs, of which the middle and hind pairs are approximately the same length. Pupation takes place around March or April. The pupae are cream-coloured to [...] General The garden chafer ( Phyllopertha horticola ) is a beetle from the Scarabaeidae family. It does most of its damage in the larval stage when it feeds

• En-Strip

  carefully inside the greenhouse Bend and tear off the strips opposite to the mounting hole Make sure not to touch the pupae during handling Suspend the cards in [...] conditions The parasitic wasp is most effective at temperatures between 20°C and 25°C (68 and 77°F). At a 24 hours average temperature below 17°C/63°F the control [...] parasitic wasps parasitise the third and fourth larval stage of the whitefly . Additionally, host feeding also occurs. Visual effect Parasitised Trialeurodes

• Vidi Parva

  and promote the uptake of nutrients from the rhizosphere and the release of exudates that support the rhizosphere microbiology. Visual effect Longer roots [...] Shake the container well before use Fill the application tank with half the required amount of water Add the required amount of Vidi Parva to the water [...] around the roots or sprayed on the plant canopy. Application as drench or via the irrigation system: A separate tank/container is recommended for the proper

• Circular scale

  under the scale. Eggs hatch under the scale and the crawlers walk about to find a suitable feeding site before settling to a sessile lifestyle. The second-instar [...] and subtropical parts of the world, mostly in association with the citrus industry. In more northern countries of its range, it occurs in greenhouses. In [...] signs of an infestation are dark-purple to reddish-brown or black spots with paler margins, on both surfaces of shaded leaves of the host plant. Life cycle