Does Swirskii Really Do What it's Intended To?

Biological control of whitefly - Amblyseius swirskii

Bacterial canker of tomato

potato, the disease usually only occurs in the second half of the season. The first symptoms are wilting of the lower leaves and subsequent expansion of the [...] first discolouration of the vessel tissue appears, especially when cutting the tubers. This discolouration is round, hence the name ring rot. Life cycle [...] then growing into the vessels of the plant. Plant growth is inhibited and the plant wilts because the xylem vessels become blocked. The bacterium can survive

Infestation Levels in Tomato Crops: A Look at the Top Four

Black leg of seedlings

infection is the easy stripping of the skin from the root cortex with a finger nail. Life cycle and appearance of Black leg of seedlings Pythium belongs to [...] bulbs. At first, the plants recover during the night, but later the plants wilt irreversibly. In potted plants the flower buds fall off. The side roots rot [...] and very little of the root system survives. On the border between air and soil or substrate the plant turns brown. A typical symptom of a Pythium infection

Optimal placement of bumblebee hives

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 [...] Correct placement of hives The right placement of bumblebee hives can significantly enhance the pollination efficiency of bumblebees. The following steps [...] sunlight, typically on the north side. If needed, the hives can be placed higher inside the crop, at a minimum height of 1.4 meters above the ground, particularly

Treatment of bumblebee stings and allergies

reduce symptoms. In the rare case of a sting in the mouth or near the throat, specifically the pharynx, the patient should be taken to the hospital immediately; [...] itchiness and redness at the site of the sting. This may last for only a couple of hours. Further, the reaction can occur directly after the sting, but more generally [...] informs about the possible reaction to a sting and treatment. Download the poster version of Bumblebee stings and allergies through the link below. Download

Municipality Venray: biological control of oak processionary caterpillars

In the Municipality of Venray a third of the tree stock in the area, some 11,000 trees, is oak. ‘We’ve been using Koppert’s nematode product Entonem as [...] for the Municipality of Venray. ‘We use nematodes at locations in outlying areas where there might be protected species of butterfly and moth. The major [...] positive. ‘The trees that we have treated have been 90% cleared. What is interesting is that avenues running east to west are typically free of oak processionary

Tree specialist Wolterinck: Control of oak processionary caterpillar with Entonem

Wolterinck BV sprays the nematodes when the caterpillar egg casings begin to emerge. A second spraying may be needed, either of nematodes or of nematodes plus [...] witnessed the effect of Koppert’s nematode product Entonem on the oak processionary caterpillar. ‘We’ve been using nematodes for years. The product is [...] Wolterinck BV is a staunch advocate of Entonem against the oak processionary caterpillar. Ivo de Groot continues, ‘The product has a guaranteed firm, preventive

An impressive range of predatory mite solutions thanks to continuous research and innovations

Original stories- René Koppert

Fall Armyworm

symptoms The developing larvae eat different parts of the host plant, depending on the crop, the stage of crop development, and the age of the larvae. On [...] distinct white inverted Y-shaped mark on the front of the head and four large spots on the upper surface of the last segment. Pupae are reddish brown and [...] s of fall armyworms feed on the leaves, stems and reproductive parts of more than 100 plant species causing major damage to cultivated grasses, such as