Manual Growing lights

spectrum for foraging, but do not see in the red light spectrum. Conversely, humans do see in the red light spectrum but also in the green and blue light spectrum [...] lose all its foraging bees in just 2 hours if the placement advice for pollination under growing lights is not applied! Under certain conditions it may be [...] Snowfall Snow reflects 90% of the UV-light. It disturbs the orientation of bumblebees while it falls and when it covers the greenhouse. Keep a close eye on

Artificially lit crops pollination advice

Placement advice in artificially lit crops For best results, consider the following placement advice in greenhouses with artificial lighting: In regions with [...] light sources can cause confusion in their orientation. To prevent bumblebees from flying aimlessly in the crop, it is advised to turn off grow lights [...] shortest day, depending on latitude and environment) rapid decline in colonies could occur. In the ever-evolving world of agriculture, the utilization of artificial

Effective thrips control with predatory mites

mites. It originates from mediterranean regions and therefore establishes fast in warm and moderate to high humid environments. It is available in multiple [...] chemical tools in an IPM program. Koppert: expert in predatory mite solutions Koppert offers solutions for both preventive and curative applications in crops such [...] insects and mites. It feeds on all larval stages of thrips and has a big appetite compared to other predatory mites . Furthermore, it has a high reproduction

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 [...] 90% or when the leaves are wet. Small differences in optimum temperatures occur between species, but in general, the risk of Alternaria infection is larger [...] seed and propagation materials. Practice crop rotation, in particular when spores surviving in the soil are the main source of infection. Especially wheat

Whitefly

comparable in outline. Whitefly can be found in many different environments, but they are particularly common in greenhouse settings and in agricultural [...] damaging whitefly pests. As the name suggests, it is commonly found in greenhouse environments, where it feeds on a wide range of crops, including tomatoes [...] the populations of whitefly in a short period of time. These predatory mites cannot be used in tomato as they get stuck in the sticky stuff the glandular

Amblyseius swirskii

Ulti-Mite ). In this case the predatory mites multiply in the sachet and disperse into the crop over a period of several weeks. Hang sachets in sheltered [...] feed on pollen, which is useful for instance in sweet pepper crops as the predatory mite can establish in the crop before the pest appears. Amblyseius [...] laid on the underside of leaves, often in the axil of veins. They are oval, white and are approximately 0.14 mm in diameter. The larvae have six legs, are

Pepino mosaic virus

can be observed. In Europe, the Chilean strain (CH2) is dominant and present in 90% of the infections. If more strains are found in case of infection [...] been in contact with infected crops. If one plant in a greenhouse contracts PepMV, the rest of the plants are sure to follow. PepMV can survive in plant [...] etc. In other words, all means by which plant sap of an infected plant gets in contact with a non-infected plant. As soon as one single plant in the greenhouse

Damping-off

aphanidermatum mostly occurs in young plants and damage is more extensive in young crops. Damage symptoms Pythium affects roots, in particular those of seedlings [...] 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, caused [...] temperatures or sudden fluctuations in temperature. Pythium aphanidermatum mostly occurs at higher temperatures in the soil or irrigation water. Pythium

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 [...] 90% or when the leaves are wet. Small differences in optimum temperature occur between species, but in general the risk of Alternaria infection is larger [...] seed and propagation materials. Practice crop rotation, in particular when spores surviving in the soil are the main source of infection. Especially wheat

Grey mould

fungus in many environments. It survives in plant parts like bulbs and crop residues or as sclerotia (drought- and cold-resistant structures) in the soil [...] plants or plant parts in a closed plastic bag In tomato: prune with a knife and not by hand, to avoid rugged, irregular wound surfaces In cucumber: remove dead [...] lesion wilts and dies. In vegetables and strawberry, grey mould ( Botryotinia fuckeliana / Botrytis cinerea ) affects the fruit. In potted plants, the cuttings