Greenhouse whitefly

and the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking [...] es: If the population is very large, feeding on plant sap can affect the physiology of the plant, as a result of which growth is retarded. In full sunlight [...] although strictly spoken this is not true) and adult. The larvae are found on the underside of young leaves and have an oval shape. The first instar larvae

Verticillium wilt

temperature for Verticillium albo-atrum is 21 °C and growth stops above 30 °C, whereas Verticillium dahliae has an optimum temperature around 25-27 °C. How [...] the microsclerotia are formed. The spread of the fungus by mycelium growth is limited. Dispersal from plant to plant takes place via water, soil particles

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

Spical-Plus

al conditions Neoseiulus californicus is most effective at temperatures between 13 and 32°C (55 and 90°F) and is sensitive to relative humidity below 60% [...] locations in the crop, not exposed to direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging [...] evenly spaced in the crop. Release should be repeated after 4 weeks if the pest is not controlled. Consult a Koppert advisor or a recognized distributor of Koppert

Spical Ulti-Mite

al conditions Neoseiulus californicus is most effective at temperatures between 13 and 32°C (55 and 90°F) and is sensitive to relative humidity below 60% [...] 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, provide ventilation [...] locations in the crop, not exposed to direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging

American serpentine leaf miner

pea, bean and potato. In greenhouses, it is mainly found on gerbera and chrysanthemum. Today the insect is widespread across the whole world. Damage symptoms [...] since about 1976. The American serpentine leaf miner ( Liriomyza trifolii ) is highly polyphagous and thus lives on many host plants such as chrysanthemum [...] cause damage to plants both directly and indirectly. The most direct damage is caused by the larvae mining the leaf tissue, leading to desiccation, premature

Swirski Ulti-Mite

swirskii is most effective at temperatures between 20 and 32°C (68 and 90°F). It is not effective at temperatures below 18°C/64°F. Amblyseius swirskii is sensitive [...] locations in the crop, not exposed to direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging [...] evenly spaced in the crop. Release should be repeated after 4 weeks if the pest is not controlled. Consult a Koppert advisor or a recognized distributor of Koppert

Fall Armyworm

General The fall armyworm is a polyphagous pest that is indigenous throughout the Americas. Recently, it has been found in Africa too. The caterpillars [...] disperse in a radius of about 500 km (300 miles) before oviposition, which is sufficient for them to move from seasonally dry habitats to wet habitats in [...] damage and moist sawdust-like frass near the funnel and upper leaves can be an easily spotted sign of larval feeding. After feeding, the leaves appear ragged

Western flower thrips

vegetable and ornamental crops in greenhouses, and on various weeds. It is an especially significant pest in cucumber, sweet pepper, eggplants, and many [...] General The western flower thrips (Frankliniella occidentalis) is currently the most damaging thrips species in many greenhouse crops. The western flower [...] their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations become serious the leaves

Don Sanchez Fresh innovates with biological control in avocados

says: "One of the reasons why we are getting into biological control is because a law is coming that will limit the use of many molecules and insecticides [...] Don Sánchez Fresh is a producer of avocado, berries and other agricultural crops. Their successful experience with biological control of pests and diseases [...] implement this tool in the production of Hass avocado. The result has been an effective and safe control of thrips , crystalline spider mites and other