Navigating the Whitefly Battle

Roots Growers positive about Mycotal against whitefly

notice that the whitefly’s development cycle had clearly been inhibited in the spots treated with Mycotal. We used the same dosage of Enermix in the three test [...] dosages of the predatory bug. As a result of that choice, we’ve yet to find out how much of the effect can be attributed to Mycotal.’ Greater peace of mind [...] combat greenhouse whitefly . If Mycotal inhibits the pest’s development cycle, this increases the effect of the parasitic wasps and predatory bug. ‘It goes

Downy mildew of Cucurbits

brown. On the underside of the leave fluffy growth appears which is first white and later turns grey-brown. This is actually the sporulation of the pathogens [...] For most downy mildews, the optimum temperature is around 15 o C and the closer the temperature is to this, the shorter the leaf wetness period that is [...] Inside the plant, the pathogens produce haustoria, small organs with which the pathogen can take up nutrients from the living plant cells. The pathogens

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 [...] 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 [...] upwards. Cutting the stem at the foot shows whitish ooze with bacteria in the case of C lavibacter infection, but other than that the disease is difficult

Black leg of seedlings

symptom of a Pythium 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 [...] 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 [...] enable the spores to move through water. The zoospores are chemically drawn to the growing roots of young plants and move towards them through the soil water

Black rot of carrots

spores surviving in the soil are the main source of infection. Especially wheat and barley reduce the number of surviving conidia in the soil. Use resistant [...] cause primary infection of the leaves. Survival can be several years, in the case of black rot of carrots ( Alternaria radicina ) up to 8 years. Damage symptoms [...] rot of carrots Black rot of carrots ( Alternaria radicina ) is a seed-transferred carrot disease. The seeds are the main source of primary infection and

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 [...] 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

epinephrine into the thigh in the case of a sting. Tests and treatments are available at the Allergology department of the RdGG (Dr de Groot) at the Diakonessehuis [...] reaction against the injected venom develops. The response to a bumblebee sting can differ per incident. The stinger of a bumblebee or a wasp has no barbs [...] swelling, itchiness and redness at the site of the sting, lasting for only a couple of hours. This can occur directly after the sting, but more generally it

Less use of chemical pesticides due to Natutec Scout

''This facilitates the rapid identification of trends and shifts in pest and disease development. Of particular note is the utilization of the 'Heatmap' feature [...] feature, wherein colors on the company's map indicate the severity of the pest pressure. This feature swiftly and clearly illuminates the path towards optimal [...] inputting all the data into the app, it seamlessly syncs with the computer," the Scout elaborates. "The data is then organized into graphs. This allows for

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 [...] generally 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