• Aphids

  growth of a black sooty mold. Aphids life cycle Aphid damage Depending on the species, aphids can inflict various types of damage to a crop: Nymphs and adults [...] nicotianae ( tobacco aphid ) on various vegetable and ornamental crops. Aphis gossypii ( cotton aphid ), mainly on Cucurbitaceae, but also on chrysanthemums [...] markings or stripes on their bodies. Movement: Aphids are slow-moving and tend to cluster on the undersides of leaves, where they feed on plant sap. They may

• Tobacco aphid

  tobacco aphid tends to form denser colonies, closer to the top of the plant, than the peach potato aphid. It is not known to what extent tobacco aphids ( Myzus [...] is asexual, the young aphids are born as developed nymphs. They immediately start to feed on plant sap and grow rapidly. Aphids moult four times before [...] General The tobacco aphid ( Myzus persicae subsp. nicotianae ) probably evolved from the peach potato aphid in the Far East and is a key pest of tobacco

• Cotton aphid

  The cotton aphid ( Aphis gossypii ) is an extremely polyphagous aphid found on more than 700 plant species. Crop plants attacked by this aphid include cotton [...] y affecting cucumber. Damage symptoms The cotton aphid ( Aphis gossypii ) is an important vector for viral diseases. This aphid species can transmit more [...] same time, photosynthesis in the leaves is reduced, affecting production. Life cycle and appearance of Cotton aphid Aphids have a complex life cycle, with

• Green peach aphid

  different families. Damage symptoms Of all the aphids , the peach potato aphid ( Myzus persicae subsp. persicae ) is the most important vector of viral [...] young aphids are born as developed nymphs. They immediately start to feed on plant sap and grow rapidly. When reproduction is sexual, the aphids lay eggs [...] distribution. The green peach aphid ( Myzus persicae subsp. persicae ) is a particularly polyphagous aphid with summer host plants from more than 40 different

• Caterpillars

  20880.jpg Buckthorn aphid Aphis nasturtii Koppert Natupol_Fly_checklist_6.jpg Pear sucker Cacopsylla pyri Psyllid damage on leaves Koppert Squash_Kopp [...] Caterpillars are highly destructive pests that feed on leaves, stems and fruits, causing serious damage to greenhouse and field crops. Their feeding reduces [...] serious economic damage. Most species feed on leaves and young shoots, and their enormous feeding capacity can rapidly decimate a plant. Very small ca

• Mealybugs and scales

  20880.jpg Buckthorn aphid Aphis nasturtii Koppert Natupol_Fly_checklist_6.jpg Pear sucker Cacopsylla pyri Psyllid damage on leaves Koppert Gummy stem blight [...] the damage they cause by sucking plant sap, mealybugs and soft scales also produce honeydew (on which moulds grow) resulting in considerable damage in [...] also against synthetic pesticides. Mealybug & scale damage Although most species of mealybugs feed on the aerial parts of the plant, some species extract

• Beetles

  in other species also feed on leaves. Adult beetles cause damage by feeding on fruits, flower buds and leaves depending on the species. Life cycle of beetles [...] control of beetles Beetles can cause serious damage in many greenhouse and field crops by feeding on leaves, roots, or fruits, leading to reduced growth [...] cannot fly at all. Beetle damage Both larvae and adults of beetles can cause damage to crops. The larvae of some species feed on growing tips and roots or

• Predatory insects

  control agents. Female gall midges lay their eggs on plant leaves, and when the larvae hatch, they feed on aphids. Gall midges are considered beneficial insects [...] referred to as "aphid lions," are particularly effective in controlling aphids . They use their strong jaws to grasp and consume aphids at a high rate. [...] from the damage caused by these pests. Gall midges Gall midges play a beneficial role in natural pest control, particularly in controlling aphids and spider

• Know Your Enemy - A closer look at Whiteflies

  August 14, 2024

  and can produce up to 200 eggs, usually laying them on new plant growth on the undersides of leaves. Whiteflies undergo six distinct developmental stages: [...] characteristic appearance. Adult whiteflies typically reside on the underside of young leaves where they lay their eggs. [...] true flies but belong to the order Hemiptera (true bugs ). Together with aphids and scale insects, they belong to the division Sternorrhyncha. In protected

• Mirical

  feeds on two spotted spider mites ( Tetranychus urticae ), aphids and leaf miner larvae ( Liriomyza spp . ). Crops Especially tomato (can cause damage to [...] can also survive on plant sap, however absence of animal prey slows down the population build-up significantly. Sprinkle material on clean, dry rock wool [...] wool slabs, in Diboxes or on leaves. Make sure the material is not disturbed for at least a few hours Introduce in clusters of at least 50 predatory bugs