Diamond back moth

of the forewings are light ochreous and the markings are like those of the males. The back is marked with a broad cream or light brown band along the back [...] back, which is sometimes constricted to form one or more light-coloured diamonds, thus the common name diamond back moth. The moths are weak fliers and

European corn borer

brown forewings with irregular purplish grey markings. The hindwings are light grey with darker markings. The eggs are nearly flat, ca 1 mm in diameter [...] The head is brown to brownish black. The pupae are up to 2 cm long and light to dark reddish brown. In Europe, adults appear in June. The eggs are laid

Cotton aphid

always black, whatever the body colour, which can vary widely, from light yellow to light green, or even a green-black colour . This body colour depends on

Trianum effectively controls Pythium in cucumber

sections. Hendriks grows high-wire (two crops per year) under high-intensity lighting (190 micromol). He sells his cucumbers to some major retailers in the [...] response to his crop’s susceptibility to Pythium. ‘My crop gets 20 hours of light a day, which means it requires a lot of water. That larger quantity of water [...] another situation like that.’ The crop receives 20 hours of high-intensity light every day, which makes it susceptible to Pythium. A very acceptable level

Two-spotted spider mite

that is rounded at the rear end. Their colour can vary from orange, light yellow or light green, to dark green, red, brown, or almost black. Males are smaller [...] is narrower and more pointed at the rear. Colour is very variable: from light yellow or orange to dark yellow or brown.The colour of the adults often depends

Cannabis aphid

colourless to pale yellow, and as the days become shorter, they change to light green or brown with dark green stripes running the length of the body. The [...] In greenhouses, sexual reproduction is very rare and only triggered if lighting signals a shortening day.

Common asparagus beetle

are dark grey to whitish, have small black heads and three pairs of stout, light brown legs. When fully grown, the larvae drop to the ground to pupate. The

Click beetles

skinned. They are up to 25 mm long and usually shiny yellowish brown or light brown with a darker head. Larval development takes 4 to 5 years. When fully

Roots Growers positive about Mycotal against whitefly

covering 7 hectares (crops without artificial lighting) and another covering 8 hectares (crops under artificial lighting). The second site, located in Zevenhuizen [...] operate differently. The 7-hectare section grows crops without artificial lighting from week 2 to week 51 inclusive. The other section, fitted with SON-T

Chrysoperla carnea

transparent when newly hatched, later becoming cream-coloured to light brown. The head is light grey, with black eyes, and dark mouthparts and antennae, with