• Western flower thrips

  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 [...] viruses affect a wide range of plants, and often a single host plant may be infected by both viruses. Life cycle and appearance of Western flower thrips The [...] occidentalis) develops in six stages: egg, two larval instars, prepupa, pupa, and finally the adult insect. The eggs of the western flower thrips (Fra

• Caterpillars

  crops. Biological control of caterpillars combines monitoring and control strategies that target different life stages of the pest: Beneficial nematodes [...] addition to consumption of the plant, caterpillars also spoil the plant with the large quantities of frass they leave behind. Life cycle of caterpillars Caterpillar [...] under Control: Plenty of Options with our Comprehensive IPM package for Management of Thrips. Keep Thrips under Control: Plenty of Options with our Com

• Beet armyworm

  black. The colour and pattern of the caterpillars is highly variable and depends partly on the host plant, the stage of development and the climate. A [...] greenhouse and the field, it is a major pest of sweet pepper. Damage symptoms Older caterpillars migrate to the top of the plant where they feed mainly on the [...] damage has considerable consequences for the growth of the crop. With a substantial population of caterpillars, the damage can spread to the stems, and

• Precautionary measures for product allergies

  doctor. In case of a life-threatening situation call the emergency medical services immediately. A combination of factors The level of sensitivity differs [...] or reduce any allergic reactions caused by the type of products mentioned above. Which products are of concern? This concerns the predatory mites , feeder [...] differs per person. Allergy problems can occur within just a few weeks of the first moment of contact, or could take years to appear. Not everyone who is exposed

• Mealybugs and scales

  gain an adequate intake of protein, mealybugs must ingest large quantities of sap, getting rid of the excess sugars in the form of honeydew. Characteristically [...] the honeydew with its sooty mould is usually the first sign of the presence of this type of pest. Among ornamental crops, ferns are particularly sensitive [...] yield. Effective control of mealybugs and scales is essential to maintain healthy and marketable crops. Biological control of mealybugs and scales relies

• Macrocheles robustulus

  occidentalis) pupae per day. Life cycle of Macrocheles robustulus Macrocheles robustulus passes through the following stages: egg, six-legged larva, eight-legged [...] used for the control of the following pests: Sciarid flies (fungus gnats) Thrips Lyprauta larvae The predatory mites feed on larvae of sciarid flies , thrips [...] insects. The mites appear in and on the soil and at the base of plant stems. Feeding behaviour of Macrocheles robustulus Predatory mites pierce their prey

• Know Your Enemy - A closer look at Whiteflies

  August 14, 2024

  crops whiteflies cause significant damage, variety of crops such as tomato, cabbage, potato and citrus. Life Cycle Adult females live up to six weeks, and can [...] them on new plant growth on the undersides of leaves. Whiteflies undergo six distinct developmental stages: egg, first, second, third, and fourth larval [...] larval instars, and finally, the adult stage. The late fourth larval stage is often called a 'pupa.' The eggs are laid upright, spindle-shaped, and attached

• Pea blight, leaf and pod spot

  stem base but is not part of the foot rot syndrome in peas. Infected seeds may have brown areas. Life cycle and appearance of Pea blight, leaf and pod spot [...] orange-red masses of two-celled conidia are exuded. Secondary infection is by splash dispersal of these conidia. There is no known sexual stage. Ascochyta fungi [...] lesions of stems, leaves, and pods (pea leaf spot and pea pod spot). Damage symptoms Ascochyta pisi causes spots on leaves, stems and pods of peas. The

• Phytoseiulus persimilis

  feed on other prey. Feeding behaviour of Phytoseiulus persimilis Phytoseiulus persimilis feeds on all stages of spider mites , but has a preference for [...] per day. Because the development rate of the predatory mite is roughly twice that of the spider mite, the number of predatory mites increases rapidly, and [...] tactile sense to find their prey. The developmental stages of Phytoseiulus persimilis are the same as those of spider mites : egg, larva, protonymph, deutonymph

• Aphids

  Aphids can be a variety of colors, including green, yellow, black, brown, pink, or red, depending on the species and their stage of development. Some species [...] lead to the growth of a black sooty mold. Aphids life cycle Aphid damage Depending on the species, aphids can inflict various types of damage to a crop: [...] for maintaining healthy, productive crops. Biological control of aphids uses a combination of natural enemies that attack aphids in different ways: Parasitic