Municipality Venray: biological control of oak processionary caterpillars

Entonem is that nematodes kill fewer other caterpillars , which means they are less harmful to biodiversity. This is something that is high up on the political [...] been 90% cleared. What is interesting is that avenues running east to west are typically free of oak processionary caterpillar, while those running north [...] more drift during spraying in those places, which means that the nematodes are more easily blown away. In some cases, we have to take curative action and

Black bean aphid

cornicles (or siphunculi) are short and usually darker than the body. The legs are light yellow with darker tips. Adult wingless aphids are 1.5-3.1 mm long.

Circular scale

premature leaf and fruit drop, and stem dieback. First signs of an infestation are dark-purple to reddish-brown or black spots with paler margins, on both surfaces [...] adult male is 0.7 mm long and has a single pair of wings. First-instar nymphs are 0.3 mm long and have legs, but soon settle to form circular, initially white [...] feeding site before settling to a sessile lifestyle. The second-instar nymphs are the main feeding stage in both sexes. Development to adult takes 7-16 weeks

Anthurium

spathe) with many flowers on the spadix. Standard varieties of anthuriums are recognized by its uniform colours and heart-shaped spathes. In many markets [...] is the most popular colour. Other types include the obake anthuriums which are larger than the standard ones and their spathe has a more prolonged shape

Rose

the family Rosaceae. Rose also refers to the flowers the plant bears. There are more than one hundred rose species and thousands of different cultivars. The [...] sharp thorns. The flowers of the rose plant can vary in shape and size, but are often ornate and bright coloured. Colours range from white to yellow, pink

Steinernema carpocapsae

commonly used in biological pest control . These microscopic roundworms are parasitic and are known for their effectiveness in controlling a variety of pests. [...] systems: Pressure-compensated irrigation systems are recommended. If not available, spray or drench applications are recommended. For injection through Dosatr [...] grubs, beetle larvae , and fly larvae . Steinernema carpocapsae nematodes are often applied to the soil or sprayed onto plant foliage as a biological control

Black currant

hand or by machine. The berries are extremely rich in vitamin C and polyphenol phytochemicals. Nowadays, black currants are extensively cultivated, both on

Dacnusa sibirica

and second instars. Their eggs are laid in the larvae and the adults emerge from the host pupae. Eggs of Dacnusa sibirica are oval and a clear white colour [...] to the particular situation. Start introduction as soon as the first mines are visible in the crop. Introduction rates typically range from 0.25-0.5 per [...] affected by leaf miners . Once such a plant has been found, suitable hosts are very rapidly located. They use the antennae and ovipositor to find a mine

Carrot

orange to black and purple, but also red, yellow and white. The carrots which are produced nowadays derive from the wild carrot, Daucus carota , indigenous [...] for its seeds and leaves. Carrots can be classified as hardy biennials and are grown as annuals. Carrots can vary greatly in colour, shape and size. The

Chili pepper

d) plants. The plant’s flowers are white and have a greenish white or greenish yellow corolla. The plant’s berries are very small (10–20 millimetres (0