• Corn earworm

  female lays small quantities of eggs, between one and three, in the hairs of green ears of corn. The larvae feed on the hairs of the young corn and on the [...] necessary to open the crop to detect the pest. Life cycle and appearance of the corn earworm The eggs of corn earworm are a milky-white colour, which turn [...] total period of two to three weeks, developing a greyish colour and a black cephalic capsule in the first stage, but later adopting a variety of colours such

• Orius insidiosus

  consumed. All stages of thrips are preyed on. Adult females can eat about 20 Western flower thrips ( Frankliniella occidentalis) per day. Life cycle of Orius [...] different life stages of the predatory bug Orius insidiosus when using this biocontrol agent by observing their unique characteristics at each stage: Egg stage [...] predators, capable of piercing and feeding on the soft bodies of their prey. The predatory bug Orius insidiosus is used for the control of the following pests:

• Thrips

  transmission of viruses, the best known of which is tomato spotted wilt virus (TSWV), mainly transmitted by F. occidentalis. Life cycle of thrips Thrips [...] both pairs of wings are fully developed. Only at this stage can the particular species of thrips be identified based on form, colour and pattern of hairs. [...] biological approach. Biological control of thrips combines several complementary solutions that target multiple life stages: Predatory mites Beneficial nematodes

• Vine mealybug

  an adequate intake of protein, mealybugs must therefore ingest large quantities of sap, getting rid of the excess sugars in the form of honeydew. Charac [...] fungal diseases. Life cycle and appearance of Vine mealybug The Mediterranean vine mealybug ( Planoccoccus ficus ) develops through 7 stages: egg, first, second [...] causing deformation and / or yellowing of leaves, sometimes followed by defoliation. The overall effect is a reduction of photosynthesis and therefore the yield

• Impatiens thrips

  the damage can be seen as discolouration of older leaves at the bottom of the plant. Life cycle and appearance of Impatiens thrips Impatiens thrips (Echinothrips [...] 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. When infestations [...] able to spread as a consequence of the trade in foliage plants. Impatiens thrips (Echinothrips americanus) has a wide range of hosts. In addition to many

• Tobacco whitefly

  level of resistance to many insecticides and its propensity for the transmission of viruses. Damage symptoms The larvae of whitefly need a lot of protein [...] transmission of viruses, including TYLCV in tomato. The consumption of plant sap and secreting of honeydew by whiteflies reduce the aesthetic value of crops. [...] peppers, yellowing of the flower stalks in gerbera, and serious yellowing of the leaves of French beans. Other symptoms include the appearance of chlorotic patches

• Two-spotted spider mite

  on the leaves affects the appearance of the crop. This is of particular concern in ornamental crops. Life cycle of two-spotted spider mite Two-spotted spider [...] Types of Spider Mite Effective Control of Spider Mite and Thrips Everything Still Begins with Swirski Biocontrol for Spider Mites The Importance of Quality [...] ( Tetranychus urticae ) is a pest of many crops throughout the world. Despite their small size, they are capable of very rapidly doing severe damage, due

• Asian citrus psyllid

  stems and on leaves of all developmental stages. Nymphs feed on young leaves and stems, continuously secreting copious amounts of honeydew and a thread-like [...] and there is no known cure. Life cycle of Asian citrus psyllid Adult Asian citrus psyllids are mottled brown wings insects of about 25 to 35 mm long. The [...] psyllid, ( Diaphorina citri ), is an important pest of citrus in several countries as it is a vector of a serious citrus disease called greening disease or

• Aphidius colemani

  colemani is widely used in the biological control of aphids . Aphidius colemani is used for the control of the following pests: Cotton aphid ( Aphis gossypii [...] or a recognized distributor of Koppert products for advice on the best strategy for your situation. Best conditions for use of Aphidius colemani The parasitic [...] aphids , even when they are at low density. The behaviour of the female during egg-laying is typical of the Aphidiidae. First the host is examined by drumming

• Greenhouse whitefly

  The larvae of whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and [...] consumption of plant sap and secreting of honeydew by whiteflies reduce the aesthetic value of crops. This is particularly important in ornamentals . Life cycle [...] General The greenhouse whitefly ( Trialeurodes vaporariorum ) is one of the major pests of vegetable and ornamental crops in greenhouses throughout the world