• Montdo-Mite

  effect on all stages of non-webbing spider mites (e.g. European Red Mite , Panonychus ulmi ) and rust mites. Crops Builds up high populations in chrysanthemum [...] chrysanthemum when used in combination with Nutari Do not use in tomato Mode of action Predatory mites use their piercing mouthparts to extract the contents [...] cap to open the dosage hole Carefully sprinkle material on leaves Make sure the material remains on the leaves for at least a few hours after introduction

• Impatiens thrips

  attacks sweet pepper, cucumber and eggplants. It lives exclusively on the leaves and is often present on weeds in greenhouses. Life cycle and appearance of [...] from egg to adult on the plant, specifically on the leaves. Eggs are deposited in the leaf tissue, while subsequent stages are found on the upper- and undersides [...] Pupation occurs on the leaf rather than on the ground. The prepupae and pupae remain immobile on the leaf tissue. Adults are found on both upper- and

• Pierce's disease of grapevine

  parts 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 [...] 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 [...] deficiency. Infection becomes systemic more rapidly in young trees than in older trees. In the latter, it may stay limited to certain branches. When the leaves

• Angular leaf spot

  overwinters in plants and dead leaves, that become the primary source of infection in the spring. The bacteria are also introduced in a crop in new transplants [...] survive well in dry leaves or leaves in the soil, but not independantly in the soil. Under humid conditions, bacteria ooze from the lesions on the leaves [...] the day and cold nights, in combination with high humidity or presence of water. These conditions occur mostly in the spring if it rains or when sprinkler

• Circular scale

  northern countries of its range, it occurs in greenhouses. In addition to citrus, it occurs on many other plants. Damage symptoms Chrysomphalus aonidum has a [...] region but it has been dispersed widely in tropical and subtropical parts of the world, mostly in association with the citrus industry. In more northern [...] environments. In citrus, it tends to prefer the lower and central parts of mature trees. Circular scale prefers the leaves, but in high infestations it may spread

• Blackcurrant aphid

  swollen. In spring, the blackcurrant aphid lives on the underside of the young leaves of currant plants. It does not induce a gall on blackcurrant. In June [...] s , attacks black currant and also red current. It is widespread throughout Europe and also present in the Russian Far East and North America. Damage symptoms [...] cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with unfertilized

• Tobacco whitefly

  This insect was first identified on tobacco in Greece in 1889, hence the name tabaci . It has subsequently been found in most tropical and subtropical countries [...] leaf damage can in turn influence the development of fruit and lead to a reduction in yield. The honeydew deposited on fruit makes it sticky. Dirt adheres [...] throughout the world. It causes damage in (sub-)tropical areas especially. The tobacco whitefly ( Bemisia tabaci ) is feared because of its high level of resistance

• Cabbage leafroller

  y gerbera. In chrysanthemum too, this species is an increasing problem, and it has caused problems in sweet pepper since the mid 1980’s. In protected soft [...] length. The moths fly when it is dark. The yellow eggs are laid in batches of 10 to 90 pieces and covered with a gelatinous layer on the upper side of leaves [...] light in colour. The ventral surface is lighter than the dorsal, with hairs located in warty spots that are lighter than the general body colour. In general

• Personal message to our customers

  April 8, 2020

  Especially in a time when it is increasingly important to stay healthy, we want to make sure you know that we are here for you. No matter where you are in the [...] you can continue to rely on our natural solutions. And that we can continue to work together on growing sustainable crops, in partnership with nature. [...] In these turbulent times we reach out to you. Dear grower, In these turbulent times we reach out to you. Because, without you the World wouldn’t have fresh

• Carnation tortrix

  major pests in carnation cultures throughout the Mediterranean region, particularly in Israel, Italy, France and Spain. In greenhouses, it is most notable [...] Madeira. It is polyphagous, observed on 160 cultivated and wild plant species – trees as well as herbaceous forms - of 42 plant families, and it is the major [...] the damage it inflicts on carnations and strawberries. Damage symptoms The larvae of the carnation tortrix ( Cacoecimorpha pronubana ) feed on the upper