Tobacco whitefly

cause to a crop is the result of sucking out the sap from the plant leaves and secreting honeydew. This can have the following consequences: If the population [...] influence the development of fruit and lead to a reduction in yield. The honeydew deposited on fruit makes it sticky. Dirt adheres to the fruit, and the growth [...] after emerging. The insect is covered with a white waxy substance. The adult of the tobacco whitefly ( Bemisia tabaci ) closely resembles the greenhouse whitefly

Montdo-Mite

Push the centre of the cap to open the dosage hole Carefully sprinkle material on leaves Make sure the material remains on the leaves for at least a few [...] twice, or until control is achieved. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your [...] Natutec Airobug Dosage The dosage of Montdo-Mite depends on climate, crop and pest density and should always be adjusted to the particular situation. Start

Mediterranean fruit fly

black mouth hooks. The puparium is 4-5 mm long, yellowish brown to reddish brown and barrel-shaped. The eggs are laid below the skin of the host fruit. After [...] hatching, the larvae feed on the flesh of the fruit. As each fly lays several eggs in a fruit and different flies may lay eggs in the same fruit, the number [...] General The Mediterranean fruit fly ( Ceratitis capitata ) is widespread in Africa, the Mediterranean basin and South America. Ceratitis capitata is a highly

Obscure mealybug

of the world with a temperate climate. It has a very similar appearance to the citrus mealybug (Planococcus citri) , but its body is covered with a thicker [...] fertilize. The female second instar nymphs, on the other hand, settle on the leaf and begin to secrete wax, moulting to a third instar and then the adult female [...] wax, the filaments around the body are longer (20-50% of the body size) and the two tail filaments are always markedly longer than the others. The obscure

Fusarium wilt

inside the vessel system of the host plant and spreads upwards inside the plants. The other species are dispersed upwards on the outside of the plant. [...] Fusarium oxysporum is the species causing vascular wilt. First the leaves turn yellow and wilt, mostly on one side of the plant. Finally, the whole plant wilts [...] Fusarium wilt General Fusarium is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many

Cottony soft rot

sclerotia. The fungus also infects seeds and tubers, thereby creating a source of infection for the next crop. The dispersal to neighbouring plants is by mycelial [...] mycelium infects the stem base and the roots, whereas the ascospores infect the above-ground plant parts. In greenhouses, usually only mycelium is produced by [...] by the germinating sclerotia. The fungus grows quite rapidly inside the plant and kills the host cells. On the infected plant tissue white, fluffy mycelium

Montdo Ulti-Mite

after 4 weeks if the pest is not controlled. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for [...] locations in the crop, avoid hanging into direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging [...] damaging the predatory mites Dosage The dosage of Montdo Ulti-Mite depends on climate, crop and pest density and should always be adjusted to the particular

Cottony cushion scale

period of 2 to 3 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 [...] 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 [...] from the body. On reaching maturity, the ‘female’ produces a white, fluted, wax ovisac with a series of uniform ridges running lengthwise over the surface

Citrus thrips

4-6 days. The larva will move towards the shady area of the tree to pupate, if a suitable site is not found, the larva will drop to the ground to pupate. [...] or under the calyx of a fruit due to their thigmotactic behaviour. Damage around the calyx appears as silver white blemished areas when fruit is small, which [...] brown when exposed to the sun later in the season. Severe scarring of fruit can occur up to 13 weeks after petal fall, after which the damage appears as

Cotton aphid

and kalanchoe. The cotton aphid ( Aphis gossypii ) is distributed throughout the world but prefers the warmer regions. It has been a pest in European [...] including the cucumber mosaic virus. Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s [...] plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough in the season, the death of young plants. Retarded growth