Chrysoperla carnea

Chrysoperla carnea , commonly known as the green lacewing, is a beneficial insect used in agriculture as a natural predator of various pest insects. It belongs [...] with a salivary fluid that digests the body contents, which are then sucked out. The prey can sometimes be larger than the larva itself. On average a larva [...] are harmful to plants. In agriculture, Chrysoperla carnea i s employed as a biological control agent to manage pest populations. The larvae of green lacewings

Citrus mealybug

development. After the second instar, a male nymph forms a dark brown ‘prepupa’ from which a pupa rapidly develops, inside a white cottony cocoon. Females undergo [...] is to fertilize the females and as soon as a male emerges from its cocoon, it goes in search of a female. A fertilized female lays several hundreds of [...] Planococcus citri ) has a world-wide distribution and many and diverse host plants. In temperate regions of the world this mealybug poses a problem in greenhouse

Thripex

per m2/release. Releases should be repeated if necessary. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best [...] contents. Pack size 50,000; 100,000; 500,000 predatory mites . Presentation 1,000 ml bottle; 6 litre bucket. Carrier Bran. Application Turn and shake the [...] use Bottle: Push the centre of the cap to open the dosage hole Bucket: Use a spoon to distribute Thripex Sprinkle material on leaves or put small heaps

Grey mould

area, new spores are formed within a few days. Under circumstances unfavourable for germination, the spores can survive a few days on the plant surface and [...] greenhouse crops Remove diseased plants or plant parts in a closed plastic bag In tomato: prune with a knife and not by hand, to avoid rugged, irregular wound [...] General Grey mould ( Botryotinia fuckeliana / Botrytis cinerea ) is a commonly found fungus in many environments. It survives in plant parts like bulbs

Rhizoctonia solani

long believed to be a sterile fungus, but recently it was discovered that the fungus produces basidiospores. These spores don’t play a role in the epidemics [...] ff’), both before and after emergence. A typical symptom of root infection is that the taproot is reduced to a thread. Reddish-brown lesions occur on the [...] mycelium grows in a typical way, with branching at 90 degree angles. This feature makes the fungus more easily identifiable under a microscope. Within

Spical Ulti-Mite

repeated after 4-6 weeks if the pest is not controlled. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best [...] mites reproduce within the sachet and gradually disperse into the crop over a period of several weeks. Using their piercing mouthparts, they feed on prey [...] soon as possible after receipt. If necessary, the product can be stored for 1-2 days. Storage temperature 12-14°C/54-57°F. Storage conditions In the dark

Black leg of seedlings

substrate the plant turns brown. A typical symptom of a Pythium infection is the easy stripping of the skin from the root cortex with a finger nail. Life cycle [...] General Pythium is considered a ‘weak pathogen’, meaning that it can usually only affect plants that are in a sub-optimal condition or suffer from stress [...] of seedlings Pythium belongs to the Oomycetes, a separate group of microorganisms and is therefore not a real fungus. It survives as oospores, resting spores

Bacterial wilt, brown rot

solanacearum is a plant pathogenic bacterium. It is a soil-borne disease and colonises the xylem, causing bacterial wilt and brown rot in a very wide range [...] Ralstonia solanacearum is a quarantine organism in Europe and considered a bioterrorist organism in the United States. It is a commonly found soil-inhabitant [...] incidence with up to 250% Quarantine measures are in place, including a five-year ban on using a field for potato cropping after infection of potatoes from that

Downy mildew of Cucurbits

prevent Downey mildew Choose resistant cultivars Use a wide crop rotation with non-host crops Prevent a humid microclimate. Achieve this by lowering crop [...] General Pseudoperonospora cubensis is a plant pathogen causing downy mildew on cucurbit crops like cucumber, cantaloupe, pumpkin, watermelon and squash [...] living plant cells. The pathogens continue to grow inside the leaves and after a while new spore-bearing structures are protruding from the stomata. Because

Crazy roots, hairy roots, crown gall

seems to be caused by a change in the hormonal system of the plant resulting from the Rhizobium infection. Rhizobium rhizogenes puts a Ri-plasmid in the plant [...] tissue and causes a genetic change in the plant. How to prevent Crazy roots, hairy roots, crown gall Use clean propagation material Use a strict hygiene protocol