• Cryptolaemus montrouzieri

  ceases at temperatures below 9°C. Life cycle of Cryptolaemus montrouzieri You can recognize the different life stages of the predatory beetle Cryptolaemus [...] between 25°C and 28°C (68 and 82°F). Feeding behaviour of Cryptolaemus montrouzieri All moving stages of Cryptolaemus montriouzieri prey on mealybugs , seizing [...] appear to prey on all stages of mealybugs equally. Adult ladybirds are good fliers and can disperse over a large area in search of prey. Although Cryptolaemus

• Two-spotted spider mite

  leaves affects the appearance of the crop. This is of particular concern in ornamental crops. Life cycle and appearance of Spider mite Two-spotted spider [...] developmental stages: egg, larva, protonymph, deutonymph, and adult. In the larval and nymphal stages, an active period and a resting period of roughly equal [...] ( 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

• Spider mites and other mites

  necrosis. Life cycle of mites The life cycle of mites typically consists of four stages: egg, larva, nymph, and adult. The duration of their life cycle can [...] temperature, humidity, and the availability of food. Here's an overview of the life cycle of plant mites: Egg: The life cycle begins with the female mite laying [...] Biological control of spider mites and other mites uses a range of natural enemies that target different developmental stages of the pest: Predatory mites

• 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

• Cotton bollworm

  armigera ) occurs in the tropics and sub-tropics of all continents except for North America. Larvae of the cotton bollworm ( Helicoverpa armigera ) are [...] legumes, flowers are attacked, and seed pods may be pierced. Life cycle and appearance of Cotton bollworm Eggs are deposited individually on young shoots [...] armigera) normally goes through six larval stages, although under certain circumstances five or seven stages may occur. Young caterpillars are yellowish-white

• Chilli thrips

  widespread adaptability. Life cycle and damage of Scirthothrips The life cycle of Scirtothrips dorsalis consists of six stages: egg, two larval instars [...] thrips, is an emerging pest of significant concern in greenhouse cultivation. Known for its ability to damage a wide variety of crops, including ornamentals [...] yellowish straw in colour. Adults has heavily fringed wings and grey in colour. Life cycle is short and completed in 15 to 20 days as many as 25 overlapping

• 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 [...] biological approach. Biological control of thrips combines several complementary solutions that target multiple life stages: Predatory mites Beneficial nematodes [...] means ‘fringed wings’, and refers to the eyelash-like fringe of hairs along both edges of the thin wings. There are more than 6,000 known species. Most

• 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

• 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

• 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