Pepino mosaic virus

virus are known: the Chilean strain (CH2), the European strain (EU), the Peruvian strain (LP) and the American strain (US1). Within these strains, many different [...] symptoms The impact of a PepMV infection for the tomato grower is variable. Several factors contribute to this variability. The genetic identity of the virus [...] which isolate of which strain – that causes the infection is one them. The moment in the crop cycle when the infection takes place is another factor that

Privacy Statement

and the banner will no longer appear as long as the cookie is active. After the end of the cookie’s service life or if you delete the cookie, the banner [...] you visit the website. The main function of cookies is to distinguish one user from the other. Your browser sends us the information stored the next time [...] unsubscribe from the newsletter, please click the relevant link in the newsletter. You can also email your request to info(at)Koppert.nl , for the attention of

Optimal placement of bumblebee hives

of 1.4 meters above the ground, particularly in dense crop areas. On the darkest days of winter, consider placing the hives above the crop near the greenhouse [...] advisable to position the hives at a height of 20 – 60 cm above the ground on the south side of the path. This location ensures that the hives receive adequate [...] choose a spot where the hives receive early sunlight, typically on the north side. If needed, the hives can be placed higher inside the crop, at a minimum

Spidex Vital: Your Vital partner in spider mite control

energy from spider mite from the field to develop the eggs. This will increase the population in your crop. Proof of predation The Phytoseiulus persimilis turns [...] Once the predatory mite has consumed several spider mites , the color will gradually change to the characteristic red-orange color. This takes 1-2 days [...] mite formed the foundation of our spider mite control. Over time it grew to be one of the most important products for our growers. As the result of many

Northern Corn Rootworm

feed on the foliage, pollen, silks and developing kernels of corn, with the following consequences: When corn silks are cut all the way back to the ear and [...] diapause; the eggs of “semivoltine” Diabrotica barberi remain dormant in the soil for two winters. This allows the larvae to effectively skip the field’s [...] every year. The rootworms undergo three larval instars then pupate in the soil near the corn roots in late June or early July. After 5–10 days the adults begin

Horiver Rollertrap

through the center opening of the roll which will allow the Rollertrap to spin freely while unrolling At the beginning and end of each run, cut the trap [...] hung above the crop when the crop is still low Attach the Rollertrap to crop wires, greenhouse poles, or other supporting structures Place the Rollertrap [...] cm longer than the support structure. Wrap the extra around the support and secure with staples or clips. It may be necessary to secure the Rollertrap mid

House fly

originated in central Asia, the insect expanded its range worldwide long ago as a commensal organism to human populations; the housefly is always found in [...] production create the ideal conditions for maggot development. In extreme cases, large fly populations can even create public health issues for the communities [...] viruses (such as the Newcastle Disease virus), bacteria (such as Salmonella and E. coli ), protozoan parasites (such as Giardia ), and the eggs of many parasitic

Black vine weevil

It belongs to the family Curculionidae. Damage symptoms The major damage is caused by the feeding of the larvae on the roots. After the roots have been [...] temperate climates, the small (0.7 mm diameter), spherical white eggs are laid from the beginning of July until around the end of October. The larvae that hatch [...] brown head. These larvae live in the root zone in the soil where they feed on the roots. They are legless, roughly 1 mm long at hatching, but grow to

Quad

days before the crop flowers Position the Quad hives evenly througout the plot. The best position is on a horizontal platform just above the ground Wait [...] After introduction of the hive, worker bumblebees start pollinating the flowers while at the same time collecting pollen to feed the brood. More workers [...] workers emerge from the brood in the weeks after the introduction, increasing both colony size and pollination performance. After some weeks the colony will reach

Anso-Mite Plus

multiply in the sachet and disperse into the crop over a period of several weeks. They pierce the prey with their sucking mouthparts and suck out the contents [...] in size. Predatory mites are usually found on the lower surface of the leaves, often in the corner of the main vein and lateral veins. It is not possible [...] sheltered 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