• Grey mould

  General Grey mould ( Botryotinia fuckeliana / Botrytis cinerea ) is a commonly found fungus in many environments. It survives in plant parts like bulbs [...] storage. In lettuce, grey mould ( Botryotinia fuckeliana / Botrytis cinerea ) is part of the foot rot complex, which causes rotting of the foot and may cause [...] grows into the plant. Grey mould ( Botryotinia fuckeliana / Botrytis cinerea ) is a necrotrophic fungus, meaning that it excretes compounds that kill the plant

• Damping-off

  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 [...] irrigation water. Pythium aphanidermatum mostly occurs in young plants and damage is more extensive in young crops. Damage symptoms Pythium affects roots, in [...] 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

• Amazone Plants continues the path of organic cultivation

  market. Biological plant protection is an additional pillar that supports this position. ‘This type of plant protection is a godsend for us.’ Amazone Plants [...] longer period. This means that there is always a strong population in the greenhouse crop and control of the thrips is maintained at the right level. The [...] midge, which, according to Lex Scheffers, is very effective. The predatory soil mite and thrips predator Macro-Mite is also used to combat the eggs of the

• Black rot of carrots

  General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause [...] appearance of Black rot of carrots Black rot of carrots ( Alternaria radicina ) is a seed-transferred carrot disease. The seeds are the main source of primary [...] s occur between species, but in general, the risk of Alternaria infection is larger under quite warm and humid conditions. Infection may take place within

• Cottony soft rot

  General Sclerotinia sclerotiorum, also known as cottony soft root, is a plant pathogenic fungus. It has a very wide range of host plants. Damage symptoms [...] infect the above-ground plant parts. In greenhouses, usually only mycelium is produced by the germinating sclerotia. The fungus grows quite rapidly inside [...] source of infection for the next crop. The dispersal to neighbouring plants is by mycelial growth. How to prevent Cottony soft rot Practice dry cultivation/be

• Black leg of seedlings

  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 [...] 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 [...] seedlings Pythium belongs to the Oomycetes, a separate group of microorganisms and is therefore not a real fungus. It survives as oospores, resting spores which

• Rhyzobug

  effect Small scales are consumed entirely. In larger scales feeding damage is visible as irregular holes in the scale cover. Pack size 500 adults. Presentation [...] range from 500-3,000 per ha/release. Releases should be repeated until control is achieved. Consult a Koppert advisor or a recognized distributor of Koppert

• Cryptolaemus montrouzieri

  beetle Cryptolaemus montrouzieri is a species of beetle belonging to the family Coccinellidae. The beneficial insect is a small but highly effective predator [...] use of Cryptobug and Cryptobug-L is 16°C/61°F. However, as Cryptolaemus montouzieri favors high temperatures, Cryptobug is most effective at temperatures [...] the long-tailed mealybug . The predatory beetle Cryptolaemus montrouzieri is used for the control of the following pests: Mealybugs : e.g. citrus mealybug

• Eretmocerus eremicus

  eremicus Eretmocerus eremicus is a small parasitic wasp belonging to the family Aphelinidae . This beneficial insect is used as an important biological [...] Eretmocerus eremicus is still active at temperatures above 30°C/86°F. Behaviour of the parasitic wasp Eretmocerus eremicus Eretmocerus eremicus is a highly effective [...] whiteflies in agricultural and horticultural settings. Eretmocerus eremicus is used for the control of the following pests: Tobacco whitefly ( Bemisia tabaci

• Early blight

  General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause [...] temperature occur between species, but in general the risk of Alternaria infection is larger under quite warm and humid conditions. Infection may take place within [...] rapidly as two to three days later and sporulation within five days. Infection is both direct and through wounds and stomata. Spores are dispersed by wind and