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 [...] discolouration of the vessel tissue appears, especially when cutting the tubers. This discolouration is round, hence the name ring rot. Life cycle and appearance [...] 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

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 [...] especially dehydration. Germination of the oospores is stimulated by exudates from roots of a susceptible host nearby. The oospores germinate and form so-called

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 [...] Treating an allergic reaction In the event of a fever occurring or a grade 1 reaction, contact a GP. The decision can be made to keep an eye on the situation [...] stinger, as is the case with honeybees and wasps. Drones cannot sting. The stinger is a weapon for defence. When a bee stings, some venom is injected into

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 [...] 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 [...] 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

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 [...] Volgering. "Upon inputting all the data into the app, it seamlessly syncs with the computer," the Scout elaborates. "The data is then organized into graphs [...] 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

Beetles

known species, Coleoptera is the largest of all insect orders and displays an enormous variety of form, size and habit. A number of species are a serious pest [...] ladybirds contribute to the control of aphids . Beetles undergo a complete metamorphosis, that is, the larvae do not resemble the adult at all, and must [...] beetles in your crop Life cycle of beetles Beetle damage Both larvae and adults of beetles can cause damage to crops. The larvae of some species feed on

Aphelinus abdominalis

egg. The small aphids are used for host feeding while the larger individuals are parasitized. The control of the aphids is due to host feeding and parasitization [...] Aphid control with the parasitic wasp Aphelinus abdominalis Aphelinus abdominalis is a parasitic wasp for the biological control of various aphid species [...] species. The parasitic wasp Aphelinus abdominalis is used for the biological control of the following pests: Potato aphid ( Macrosiphum euphorbiae ) Glasshouse

Aphidius ervi

pursue the aphid to parasitize. Because of this, the disturbance of aphid colonies can have a serious impact. The aphids can be spread through the crop, [...] can parasitize hundreds of aphids within two days. Aphidius ervi is used for the control of the following pests: Potato aphid ( Macrosiphum euphorbiae [...] against aphid pests. Once the female wasp has laid her eggs inside an aphid, the emerging larvae begin their predatory activity by feeding on the aphid's internal

Aphidius colemani

colemani is widely used in the biological control of aphids . Aphidius colemani is used for the control of the following pests: Cotton aphid ( Aphis gossypii [...] Aphidiidae. First the host is examined by drumming with the antennae. This gives the wasp the information about whether the aphid is the right species, and [...] disturbance of the aphid population by the presence of the parasitic wasp also has an effect: the alarmed aphids secrete a warning substance, which affects the

Aphidius matricariae

tic for the distinction of the species are the fine stripes on side parts of the wasp waist. Aphidius matricariae is specific to aphids of the family Aphididae [...] matricariae is a notable parasitoid wasp with a distinctive feeding behavior that targets aphids . After the female wasp lays her eggs inside an aphid, the larvae [...] Aphid control with the parasitic wasp Aphidius matricariae Aphidius matricariae is a parasitic wasp belonging to the family Braconidae and is widely recognized