• Tomato leafminer

  January 1, 1970

  white to bright yellow, darkening in the embryonic phase and becoming almost black near eclosion. The first-instar larvae are whitish to yellowish after emerging [...] stem or fruit. In the second to fourth instars they become greenish with a black band behind the head. The prepupae of the tomato leaf miner ( Tuta absoluta [...] light or dark segments and recurved labial palps, that are well developed. Black spots are present on the anterior wings. Adults are nocturnal and usually

• Green peach aphid

  January 1, 1970

  secreted in the form of honeydew, making the crop and its fruit sticky. Black fungal moulds ( Cladosporium spp.) grow on this honeydew, contaminating fruit [...] colour. They appear matt, never glossy. Winged individuals have a brown-black head and thorax and a yellow-green to green or even reddish abdomen. They [...] They have a dark brown spot on the abdomen and several transverse black bands across the body. Nymphs that develop into winged adults are often pink or red

• Goat moth

  January 1, 1970

  dull greyish brown, partly suffused with grey and marked irregularly with black. Eggs are 1.7 mm long, oval and reddish brown. The caterpillars are up to [...] pink when young, later with yellowish sides and a dark red back with a black head. The pupa is 5-6 cm long, dark brown, with spines on the abdominal segment

• Aphelinus abdominalis

  January 1, 1970

  5 to 3 mm in length, with short legs and short antennae. Females have a black thorax and yellow abdomen. Males are slightly smaller and their abdomen is [...] slightly darker colour. A parasitized aphid hardens to become a leathery, black mummy. The adult wasp appears through an irregularly serrated hole at the [...] of Aphidius species by their less swollen, more elongated form, and their black colour. Adult wasps prefer to walk rather than fly, and will jump if irritated

• Rose aphid

  January 1, 1970

  flowers are often disfigured and contaminated with sticky honeydew on which black sooty moulds develop. Life cycle and appearance of Rose aphid Aphids have [...] The antennae and sometimes the head is dark in colour. The siphunculi are black and bent outwards. The rose aphid usually overwinters on rose bushes in the

• Common cockchafer

  January 1, 1970

  with a dark head, black pronotum covered with short hairs, and reddish brown elytra with four longitudinal ribs each. The abdomen is black, with typical

• Tomato moth

  January 1, 1970

  is a glossy green. Later, a conspicuous yellow longitudinal stripe with black dots above is visible on either side. The yellow stripe is bordered at the [...] three dark grey dorsal stripes, partly overshadowed by the underlying grey-black stripes. Each segment has several darker stripes both laterally and dorsally [...] three days later a red-brown pupa is formed, which gradually turns a glossy black. The moths are nocturnal, hiding during the day in fissures in the ground

• Encarsia formosa

  January 1, 1970

  head that is dark brown to black in colour, a dark brown to black thorax, and a yellow abdomen. The male is entirely black. [...] About halfway through the parasitoid’s development, the host pupa turns black. Parasitized pupae are thus easily recog nized. However, this blackening

• Lyprauta

  January 1, 1970

  superficial damage on roots. Especially the root tips are affected. They become black and start to rot internally. Just above the damaged area, the roots produce [...] dark-coloured spot on their wings. The eggs of Lyprauta sp. are greyish-black and spherical. Larvae of Lyprauta sp. are a transparent greyish white and

• Impatiens thrips

  January 1, 1970

  of thrips is relatively large. Both males and females are dark brown to black in colour with orange pigmentation between the segments, and the dark wings [...] surrounding tissue to die. The resulting silver-grey patches on leaves and the black dots of their excreta indicate their presence in the crop. The vigour of