• Beet armyworm

  wrinkled stripes dorsally and a yellow band running the length of the body on either side, above which there is a black dot on each segment. The young ca [...] it usually takes place on the surface of the ground in a loosely spun cocoon, consisting of soil particles glued together with a sticky secretion. Pupae [...] is highly polyphagous, feeding on plants of more than 20 families. It is a serious pest in greenhouses, where it feeds on ornamental plants such as chr

• Broad mite

  case of a mild infestation, one can often see brown, frequently collapsed spots, or brown stripes forming a fine network on the leaves. In case of a more [...] The typical pattern of damage consists of malformation and distortion of the above-ground growth of the plant. The mites show a preference for young, [...] curl up. A typical indication of an attack of broad mite ( Polyphagotarsonemus latus ), is the appearance of dark brown edges at the base of young leaves

• Tomato leafminer

  surface of a leaf, in a curled leaf or in a mine. If they leave the mines they build silk cocoons on the leaflets or in the soil. When pupation occurs inside [...] absoluta), a major pest of field- and greenhouse-grown tomatoes, belongs to the family of Gelechiidae . It is oligophagous, feeding mainly on Solanaceae [...] may also occur underneath the crown of the fruit and even inside the fruit itself. On leaves, the larvae only feed on mesophyll tissues, leaving the epidermis

• Diamond back moth

  singly or in small groups of two or ten eggs on both the upper and lower surface of leaves, preferentially in depressions, and rarely on stems or petioles. There [...] with a few short hairs and small white patches. The larva has five pairs of prolegs; one pair of prolegs protrudes from the posterior end, forming a distinctive [...] cases of severe infestation, entire leaves may be destroyed, leaving only the veins. The larvae feed also on the chlorophyll-rich green areas of stems

• Horiver Drystick

  Whitefly , Nesidiocoris tenuis White: Lygus spp. Mode of action Insect pests are attracted to the colour of the sticky trap and get caught in the glue. Presentation [...] 20 m 2 Notes In contrast to Horiver Wetstick , the glue of Horiver Drystick does not come off on your hands Horiver Drystick traps generally do not catch [...] pieces 25x40 cm: 12 pieces Application Place traps in areas with high risk of pest infestation such as areas near doors, gable ends and lateral ventilation

• Onion thrips

  with a saw-like ovipositor. Larvae are light to yellowish green in colour, with a large head and bright red eyes. The colour of the adult depends on the [...] throughout the world. It is found outdoors on many plants and particularly damaging on onions, leek, and in greenhouses on cucurbits, tomato, sweet pepper, eggplant [...] and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations become

• Melon thrips

  Nymph development time is dependent on temperature, but host plant quality also has an influence. After completion of nymph stage, it drops to soil and pupate [...] Damaged terminal become discoloured, stunted and deformed. They preferably feed on leaves, less damage to buds and flowers. In addition to direct damage, it [...] lifespan. Mated female lays 3 to 204 eggs. Eggs are deposited in leaf tissue in a slit cut by female. Eggs are colourless to pale white in colour. The nymphs

• Western flower thrips

  occidentalis) can be found on a wide variety of plants, including many vegetable and ornamental crops in greenhouses, and on various weeds. It is an especially [...] silver-grey patches on leaves and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll [...] impatiens necrotic spot virus (INSV). Both viruses affect a wide range of plants, and often a single host plant may be infected by both viruses.

• Tobacco aphid

  Life cycle and appearance of Tobacco aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour [...] never glossy. Winged individuals have a brown-black head and thorax and a reddish abdomen. There is a dark brown spot on the abdomen and several transverse [...] probably evolved from the peach potato aphid in the Far East and is a key pest of tobacco crops in both the United States and South America. The tobacco

• American serpentine leaf miner

  tomato and melon. Loss of leaves also reduces yield. In full-grown plants of fruiting vegetable crops, however, a considerable quantity of foliage can get damaged [...] and appearance of American serpentine leaf miner The life cycle of a leaf miner has the following stages: egg, three larval instars, a pupal instar and [...] ornamental crops, this is usually of less significance. Seedlings and young plants can be completely destroyed as a result of the direct damage caused by leaf