Pherodis

pheromone or lure, and need to be used in combination with an insect trap, the type of trap depends on the species to be monitored. The species-specific [...] when stored in a freezer (-18°C), and 1 year when stored in a refrigerator (4-6°C). Storage temperature Preferably in a freezer (-18°C), and in any case at [...] dispenser, since manual contact can spread pheromones to other areas Application Place the dispenser in the trap and place the trap in the right position as indicated

Cottony soft rot

giving this disease its name cottony soft rot. In the mycelium, big, dark sclerotia are formed. They can easily be seen with the naked eye and look like rat [...] sclerotia and mycelium in dead and living plant material in or on the ground. Sclerotia germinate at temperatures between 4 and 26 °C with an optimum between [...] Cottony soft rot Practice dry cultivation/be careful with irrigation Use wide plant spacing Remove diseased plants in a closed plastic bag Remove crop residues

Apple collar rot

optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as oospores (sexual overwintering [...] produced in the sporangia. For germination on above-ground plant parts, leaf wetness is required. Dispersal by wind and rain causes the pathogen to be returned [...] returned to the soil from infected plants. Dispersal in the soil happens via water, since the zoospores can readily move through water. This explains why the

Pierce's disease of grapevine

depends on the plant species: in peach, bacteria are found in high numbers in the roots, whereas in plum, high numbers are found in leaves and fruits. The bacteria [...] vectors or dormant plants. In citrus, the bacteria can be transferred in seed used for propagation. The bacteria are limited in many regions by winter conditions [...] die. This happens faster in younger vines than in older ones and faster in susceptible cultivars (within 2-3 years) than in more tolerant cultivars, which

Corn earworm

holes in the corn. In other crops, they prefer flower buds and soft fruit. They cause visible damage through feeding, and some larvae can also be seen on [...] cephalic capsule in the first stage, but later adopting a variety of colours such as green, brown, pink, and yellow. Other features are its size in the final [...] symptoms The female lays small quantities of eggs, between one and three, in the hairs of green ears of corn. The larvae feed on the hairs of the young