• Bacterial canker of tomato

  but don’t fall off. On stems and shoots light stripes form, which then tear, allowing cankers to form. On tomato leaves, water-soaked lesions occur, usually [...] strong efforts are used to prevent the bacterium from entering. When the occasional infection is found, strict measures are taken to eradicate the infection [...] Replanting can only take place after thorough disinfection has been proven to the authorities. Potato growers lose their entire crop of the affected field

• Melon thrips

  partheno-generic. Virgin females lays 1 to 8 eggs per day, with 3 to 164 eggs lays during their lifespan. Mated female lays 3 to 204 eggs. Eggs are deposited in [...] feed on leaves, less damage to buds and flowers. In addition to direct damage, it also transmits virus from infected to healthy plants. Life cycle and [...] colourless to pale white in colour. The nymphs resemble the adults in general body form but it lacks wings and are smaller. Nymph development time is dependent

• Rose aphid

  with unfertilized viviparous females continuing to produce new generations of females. Aphids moult four times before reaching adulthood. With each moult they [...] presence in the crop. Wingless females of the rose aphid are 1.7-3.6 mm long and green or deep pink to red-brown. The antennae and sometimes the head is dark [...] aphids. In summer, winged aphids spread the infestation to other rose plants and sometimes also to secondary hosts. Colonies are often present on rose bushes

• Consumers

  around the world to combat pests and diseases in a natural and sustainable way. In this way, we hope to make an active contribution to a sustainable society [...] greenhouses. By the time a delicious little tomato reaches your plate, it has already had a very long journey. The plant first has to form fruit before the [...] support. Koppert therefore sells its products exclusively to professional growers and farmers. In order to provide you with the best possible service as a consumer

• Southern blight

  the stand, meaning it is very often necessary to replant, which increases the crop's production costs. How to prevent southern blight Life cycle and appearance [...] development of the fungus. In the anamorphic form it does not produce spores or fruiting bodies; it only forms hyphae. In addition, germination is induced [...] penetration, generally close to the surface of the stem. In favourable conditions, the sclerotia can germinate in two forms, hyphal or eruptive, causing

• Wheat bunt

  in the soil or on seed. These teliospores germinate in response to moisture and form basidiospores, also called primary sporidium. Two mating types are [...] the other mating type so that H-shaped structures are formed. These can germinate directly or form secondary sporidia. These sporidia infect the wheat seedlings [...] teliospores. These balls break during harvest allowing the teliospores to fall to the ground. Additionaly, these teliospores contaminate healthy kernels

• Oleander aphid

  while the wingless forms (apterae) are yellow with black cornicles, antennae, legs, and cauda (tip of abdomen). Nymphs are similar to apterae in appearance [...] appearance except that they are smaller. Size ranges from 1.5 to 2.6 mm in length. Females are viviparous and parthenogenetic, meaning that they deposit nymphs [...] reproduction, high fecundity, and short generation time allow large colonies of oleander aphids to build up quickly on infested plants.

• Dwarf bunt

  epidemiological point of view. The teliospores germinate in response to moisture and form basidiospores, also called primary sporidium. Two mating types are [...] the other mating type so that H-shaped structures are formed. These can germinate directly or form secondary sporidia. These sporidia infect the wheat seedlings [...] teliospores. These balls break during harvest allowing the teliospores to fall to the ground. Additionally, these teliospores contaminate healthy kernels

• Thripor-L

  predatory mites . Storage time after receipt Apply as soon as possible after receipt. If necessary, the product can be stored for 1-2 days. Storage temperature [...] the contents of their prey, leaving the empty skin behind in its original form. Pack size 500; 2,000 adults and nymphs. Presentation 100 ml bottle. Carrier [...] application boxes (Dibox) Apply in groups of at least 50 insects in order to establish a population and encourage mating Make sure the material remains

• Woolly apple aphid

  little direct harm to mature trees but the sticky masses of “wool” may contaminate leaves and fruits and can be a nuisance at harvest time. Life cycle and [...] and appearance of Woolly apple aphid In contrast to other aphids , the life cycle and survival from year to year of the woolly aphid depends entirely on wingless [...] apple pest. It is probably of North American origin and has been distributed to other parts of the world mainly via infested apple rootstocks. It can occasionally