FAQ Nematodes

to look for a host. The effect of treatment is thus strongly dependent on how quickly a nematode has found a host. Is the effect visible? Infected larvae [...] host to this group of nematodes. By far the most nematodes belong to the group of saprophytes. These nematodes are harmless and live of dead organic matter [...] larvae will change color because of the growth of the bacteria and nematodes. In case of Heterorhabditis pink-reddish and Steinernema yellow-brownish. Under

Trial_and_Field_results_nematodes_in_fruit_orchards_EN_-_Koppert.pdf

-80% End of 1 generation 15-06-2009 st Untreated End of 1st generation 15-06-2010 Capirel Impact of one or two Capirel applications on Peach twig [...] pests in top and stone fruits Impact of Capirel autumn application on codling moth (Cydia pomonella) damage on apples, France - Independent trial (GDA84) [...] in the Tarn-etGaronne, region of France. Here he grows organic apples on 5 hectares used for baby compotes, and plums on 2 hectares. He started his orchard

Antracnosis del haba

symptoms Ascochyta pisi causes spots on leaves, stems and pods of peas. The spots on leaves and pods are round, on the stems they are more elongated. The [...] cuticle. On the lesions, pycnidia are formed from which orange-red masses of two-celled conidia are exuded. Secondary infection is by splash dispersal of these [...] fungal plant pathogen that causes A scochyta blight on pea (leaf blight or pea blight) and lesions of stems, leaves, and pods (pea leaf spot and pea pod

Apple scab

has been done on the influence of climatic conditions on release of ascospores and risk of infection, a decision support systems has been build. This system [...] and appearance of Apple scab Venturia inaequalis overwinters in the form of unripe fruiting bodies in infected fallen leaves or in lesions on twigs. These [...] direct penetration of the cuticula and then grow between the cuticula and the epidermis of the plant cells. This causes lesions, on which conidiophores

Escarabajos

crop Life cycle of beetles Beetle damage Both larvae and adults of beetles can cause damage to crops. The larvae of some species feed on growing tips and [...] belong to the order Coleoptera, a well-known group of insects that are easily recognizable on account of their hard wing covers (elytra). With more than 350 [...] species, Coleoptera is the largest of all insect orders and displays an enormous variety of form, size and habit. A number of species are a serious pest in

Oriental fruit moth

larva and pupa. It is made of silken threads and particles of the objects on which it rests. The pupa is reddish-brown. The number of generations per year varies [...] Infested fruits have frass-filled holes on the surface. On peach, the larvae destroy buds in spring and disrupt the growth of young shoots, causing them to wilt [...] from March onwards. Eggs are laid singly on leaves and twigs of trees. The larvae emerge 1-4 weeks later depending on temperature, and bore into buds and shoots

Shore fly

in the vicinity of water. They feed on algae. Other shore fly species have diverse feeding habits but the larvae of most species feed on rotting material [...] can occur on such a scale that growth, particularly of young cuttings, can be retarded. Life cycle and appearance of Shore fly The life cycle of the shore [...] feed on green algae. However, they can transmit plant diseases and can be a nuisance to greenhouse works by their sheer numbers. Frass deposited on leaves

Moscas

and indirectly. The type of damage depends on the species of the flies. Direct damage is the immediate result of larvae feeding on root hairs and tender roots [...] particularly small flies of the families Sciaridae (sciarid flies) and Ephydridae (shore flies). The larvae of these insects generally live on rotting plant material [...] to plants, they are often a problem due to their large number. Larvae of flies of the family Keroplatidae (mainly Lyprauta sp.) can cause damage in potted

Grape downy mildew

Damage symptons of Grape downy mildew P. viticola caninfect all green parts of the host plant with stomata, giving following symptoms: On young Leaves: yellow [...] chocolate-brown halo. On older leaves: small, angular, yellow to reddish-brown spots forming a mosaic-like pattern. Sporulation occurs on the lower leaf surface [...] sporulation (brown rot phase). Lifecycle of Grape downy mildew Plasmopara viticola is an obligate biotrophic pathogen of grapevines with sexual overwintering

False spider mites

ae ) are usually found on the underside of leaves where they cause a brown, scabby discolouration spreading from both sides of the main vein into the leaf [...] General Mites of the family Tenuipalpidae have a worldwide distribution and can be found on many cultivated plants. Several species have been reported [...] often be found. The false spider mite ( Brevipalpus phoenicis) also feeds on fruits of for instance citrus, papaya and pomegranate. Several Brevipalpus species