• Grape mealy bug

  mealy bugs support sooty mould growth on infected area. Young vines often die due to severe infestation of mealy bugs. Feeding damage in grapes is minimal

• Bedding plants

  and tubers . These are planted every year and removed after the plant has died down. During winter they are either stocked away or disposed of: tulip, narcissus

• Aphidius colemani

  aphids to drop from the leaf and fall to the ground. Although many aphids die as a result, many will survive and migrate to other plants to begin new colonies [...] aphids produce a mummy similar to that of Aphidius spp. The aphids do not die at once but usually continue to feed and secrete honeydew. Second and third

• Blight of pepper

  Phytophthora species cause root- and crown rot in potted plants. The small roots die and brown-black lesions occur on the larger roots. Plants wilt and the crown

• Fusarium wilt

  which can be seen when the stems are cut. In banana, whole plantations may die and the soil may not be suitable for planting for many years to come. Life

• Charcoal rot

  bearing fruit or are subjected to stress. Severely infected plants collapse and die. When the crown is cut, internal symptoms can be seen, such as discolouration

• Onion thrips

  tissues and sucking out their contents, causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black dots of their excreta

• Fusarium head blight or scab

  or from infected seed. Infected seed doesn’t germinate well and seedlings die, causing irregular crop density. The foot of the plant is infected, either

• Black root rot of cucurbits

  encircle the root. The roots become yellow-brown to black and ultimately die. Black lesions with fruiting bodies occur more commonly at temperatures of

• Red palm weevil

  these later stages when detection becomes easier, can suffice for palms to die. Females lay eggs individually into soft tissues mainly at the base of living