Spidend

Pests All species of spider mites . Mode of action After emerging from the pupa, adult gall-midges actively search for spider mite colonies and deposit [...] deposit eggs next to the spider mites . Once emerged, the larvae feed on the spider mites. Visual effect Spider mites are consumed entirely, only skin remains [...] depends on climate, crop and spider mite density and should always be adjusted to the particular situation. Start introduction as soon as the first spider mites

Towards a chemical-free future in agriculture: The vision of grower Koen

the opportunity to continue the business. While the trend towards organic farming was growing, Koen felt that it would be too quick to completely abandon [...] abandon traditional methods. He decided to find a balance between both approaches. This way of working allows him to gain experience in using biological crop [...] protection . As a result, he acquires a lot of knowledge and is prepared to fully transition to biological crop protection when the government decides that certain

Nutemia

3.6 litre cardboard cylinder. Developmental stage Carpoglyphus lactis : All stages Artemia spp.: Dead cysts Carrier Bran. Application Apply Nutemia weekly [...] together with or just after the first introduction of predatory mites Continue to apply during the season, even when pests are present Nutemia can be applied [...] Nutemia depends on climate, crop and pest density and should always be adjusted to the particular situation. Start introduction together with the first predatory

Green peach aphid

sugars, but has a low protein content. Aphids therefore need to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the [...] summer host plants from more than 40 different families. Damage symptoms Of all the aphids , the peach potato aphid ( Myzus persicae subsp. persicae ) is [...] of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough in the season,

Optimal placement of bumblebee hives

bumblebees to receive maximum daylight, aiding their orientation. To avoid overheating, ensure that the hives are not positioned too close to heat-generating [...] can be taken to increase the productivity of bumblebees: To ensure successful communication between bumblebees and humans, it is crucial to position the [...] warmer periods. Yet, bumblebees need sunlight to be effective pollinators. Additionally, it is essential to maintain humidity around the hives below 80%

Broad mite

mites (Polyphagotarsonemus latus) are not a serious problem, as they are unable to overwinter. Mites belonging to the family of tarsonemids ( Tarsonemidae [...] of legs in both males and females is different to the others and not used for walking. After moulting to the third larval stage the larvae stay in their [...] mainly concentrated on the underside near the leaf stalk, which tends to cause the leaf to turn brown and curl up. A typical indication of an attack of broad

Cannabis aphid

resembles the hop aphid ( Phorodon humuli ), to the point that microscopic analysis of the head is required to distinguish them. The hop aphid is common in [...] the season, the aphids are nearly colourless to pale yellow, and as the days become shorter, they change to light green or brown with dark green stripes [...] give birth to live, genetically identical offspring. Newborn nymphs will typically reach maturity within a couple of weeks, and adults live up to a month

Blackberry

is an edible fruit that originates from a wide range of species belonging to the genus Rubus that is part of the family of Rosaceae , but also from hybrids [...] hybrids between the Rubus and Idaeobatus subgenera. The blackberry is actually not a berry botanically speaking. It is a so-called aggregate fruit that consists

Cabbage leafroller

leafroller (Clepsis spectrana) is native to North-West Europe. It is a highly polyphagous species causing damage to field grown cabbage, apple, pear as well [...] 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 [...] cultivation, plants such as strawberry, currant, blackberry and raspberry can all serve as hosts. Life cycle and appearance of Cabbage leafroller An adult female

Chafers

generally in June and July and land on trees to mate. During the night the females move to the ground to lay their eggs. Eggs are shiny and white. The [...] cause substantial damage. The adults are not harmful. Damage symptoms Larval feeding on the roots can lead to yellowing and wilting of plants. Damage can [...] weeks and the larvae start to feed on roots. The larvae are white-coloured, C-shaped grubs, with a yellow-brown head, and up to 30 mm long when fully grown