• Two-spotted spider mite

  adults often depends on the crop in which they occur (e.g. on cucumbers they are often yellow-brown, on tomatoes they are mainly red-brown). Both males and [...] damage to the host plant by feeding on plant sap. They mainly occur on the underside of leaves where they pierce the cells and suck out the contents. The [...] slow-moving and tend to cluster on the undersides of leaves, where they feed on plant sap. They produce fine webbing over the infested area. Damage: Spider mites

• Potato/tomato psyllid

  during which they visibly change colour over the different instars, starting with orange, then greenish-yellow, and finally green. When they hatch, the adults [...] lines and a distinctive white stripe on the abdomen. They are small in size, around 2.5 mm, and they live between 20 and 60 days. [...] potato/tomato psyllid The eggs are egg-shaped with a bright orange-yellow colour. They are attached to a strand which connects them to the surface of leaves and

• Lesser house fly

  swarms in areas with still air out of direct sunlight where they remain in flight as they wait to be visited by an unmated female. Female flies are less [...] can be found worldwide, from the arctic to the temperate neotropics, and they typically reproduce in feces, compost and carrion. These flies are often [...] other Fannia spp. do not cause any direct damage to animals or buildings, they are considered a serious pest because: The males form swarms above the ground

• Tarnished plant bug

  later and begin to feed alongside the adults.They go through five nymphal stages, and as they mature they develop dark spots on the thorax and abdomen [...] spring. They begin to feed on developing plant buds and shoots immediately, migrating into crops throughout the spring and into summer. As they feed, they [...] that can grow up to 6.5 mm in length and are variable in colour; generally they are brown with yellow, orange or red accents, but their colouring can range

• Cyclamen mite

  folded leaves, where the humidity is highest and they are protected from direct sunlight. In such spots, they are difficult to observe. Damage occurs in localized [...] are about half the size of the adult mite. They are oval in form, smooth, transparent and twice as long as they are wide. Both ends are equally rounded. [...] plant growth is arrested and the flower buds are so badly affected that they shrivel and die. Damaged strawberry leaves are wrinkled and irregularly folded

• Lyprauta

  roots and bark inside orchid pots. They produce acid webs (pH 2.7 or less) consisting of central tubes along which they move, as well as more net-like parts [...] s in the Netherlands. Dutch farmers call these larvae potworms, however, they should not be confused with the actual potworms which are small earthworms [...] symptoms are superficial damage on roots. Especially the root tips are affected. They become black and start to rot internally. Just above the damaged area, the

• Lesser Mealworm

  ­black beetles with a slightly-flattened oval shape. They are about 6 mm (0.25 inches) long and they have parallel rows of tiny depressions running lengthwise [...] Salmonella . These insects reproduce quickly and are difficult to control. They hide in wall cracks and other tight spaces, evading routine cleaning and [...] their digestive tract due to damage caused by the beetles ’ hard wing covers. They can carry and transmit many different pathogens including: bacteria ( Salmonella

• Whitefly

  hatching they are actively engaged for several hours in seeking a suitable place on the leaf where they can feed. Once they have found such a spot, they remain [...] belong to the family Aleyrodidae. They are called "whiteflies" because they are typically white or yellowish in color, and they are often found on the undersides [...] many different environments, but they are particularly common in greenhouse settings and in agricultural fields. They feed on the sap of plants, which

• Citrus mealybug

  breadth. Seen dorsally, they have an oval form; they are soft and covered with a fine waxy material. They move very little. They can be distinguished from [...] filaments’ . The tail filaments are always shorter than 20% of body length. They produce little wax, so that the light yellow to pink body is visible through [...] running over the body. The adult males are short lived and can be hard to spot. They are smaller than the females, have two pairs of wings and two long tail filaments

• Orius insidiosus

  initially, turning darker (orange to brown) as they mature. They have piercing-sucking mouthparts with which they feed on thrips and other small insects. Adult [...] usually laid singly within plant tissues such as leaves, stems, or flowers. They are typically white or translucent and may be difficult to see without close [...] Nymphal stage: Orius insidiosus nymphs are the primary predatory stage. They resemble smaller versions of the adults but lack fully developed wings. Nymphs