• Fusarium head blight or scab

  density. The foot of the plant is infected, either because the seedling was infected or by direct infection of the foot by overwintering inoculum. On the infected [...] spread the disease. Gibberella zeae (Fusarium graminearum ) primarily infects the older, lower leaves. The spores are dispersed upwards to the ears by [...] , tools and machinery. Primary infection is either seed-borne or takes place as infection of the roots at the root tip or in small wounds, for example

• Cryptobug-L

  always be adjusted to the particular situation. Start introduction preventively or as soon as the first mealybugs are detected in the crop. Introduction [...] weeks, or until the pest is controlled. Consult a Koppert advisor or a recognised distributor of Koppert products for advice on the best strategy for your [...] conditions The minimum temperature for use of Cryptobug is 16°C/61°F. However, as Cryptolaemus montrouzieri favours high temperatures, Cryptobug is most effective

• SWD

  May 8, 2019

  SWD in the environment and slow the build-up of the pest to damaging levels later in the year. Early detection of SWD also ensures that there is ample time [...] for control measures to be put in place, before egg-laying commences as the crops reach the most vulnerable stages of attack (which is usually several weeks [...] Koppert’s Drososan traps are easy to use and clean. They are durable and will last for several seasons. The flat base to the trap design aids stability during

• Limonica strong contender against persistent thrips

  September 15, 2025

  for its rapid spread and damage to peppers and strawberries, this species is well-targeted by Limonica due to its ability to feed on second instar larvae [...] needed to confirm its efficacy across different crops and climates. Strengths and considerations “What makes Limonica stand out is its ability to establish [...] predatory mites is that it continues to be effective even when temperatures fall below or rise above that range. That said, it’s important to keep in mind

• Cryptolaemus montrouzieri

  control The predatory beetle Cryptolaemus montrouzieri is a species of beetle belonging to the family Coccinellidae. The beneficial insect is a small but [...] species such as the citrus mealybug and the long-tailed mealybug . The predatory beetle Cryptolaemus montrouzieri is used for the control of the following pests: [...] Sometimes the larvae resort to cannibalism under these conditions. At a temperature of 21°C, during the whole period of its development to adult beetle

• Cabbage leafroller

  General The cabbage leafroller (Clepsis spectrana) is native to North-West Europe. It is a highly polyphagous species causing damage to field grown cabbage [...] opening bud to the growing tip, while older caterpillars eat a hole in the shoot and hollow it out, causing the shoot or growing point to wilt and die. Life cycle [...] appearance of Cabbage leafroller An adult female is 12 mm long and is ochre-yellow with darker markings. The male is slightly smaller and slimmer, more

• Sciarid flies

  roots. The larvae can grow to 5 to 12 mm in length and 0.5 to 1.5 mm in diameter. They are legless and have a conspicuous black head. The head is equipped [...] General Sciarid flies constitute the family of Sciaridae. The species that cause most damage to crops belong to the genera Bradysia and Lycoriella . Lycoriella [...] damage is the immediate result of larvae feeding on the roots. The larvae feed mainly on decaying plant material and on algae and fungi present in the soil

• 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 [...] surface. The ovisac may reach the same length as the body, giving an overall combined length of up to 20 mm. The 'females' are actually hermaphrodites with

• Verticillium wilt

  vessels. The presence of both the fungus and the gum causes the xylem vessels to get blocked, which in turn causes the plant to wilt. Spores may be wind-dispersed [...] rsed to new hosts. In the senescent tissue, the resting mycelium or the microsclerotia are formed. The spread of the fungus by mycelium growth is limited [...] wilting of plants. The wilting starts at the lower leaves. These leaves are pale-green, then orange-yellow. In the beginning the plant seems to recover at night

• Spotted Wing Drosophila

  name is derived from. Females have a strong saw-like ovipositor that is used to penetrate the skin of the host fruit and for laying the egg into the fruit [...] oviposition, the respiration tubes extend from the fruit but are difficult to see. Larval feeding in the fruit leads to fruit tissue collapse. Even if the fruits [...] collapsed, the occurrence of larvae within the fruit makes them unmarketable. The punctures made by the oviposition by D. suzukii exposes fruits to secondary