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• A step-by-step guide to whitefly control

  diverse control mechanisms to target various stages of the whitefly life cycle. The foundation of effective whitefly control Monitoring for early detection [...] larvae, penetrating the host at the fourth larval stage. Life cycle: Shorter lifespan than E. formosa, but exhibits faster egg-laying rates. Temperature [...] organ function, and induces the production of proteins that further impair the insect. Symptoms : Initial signs of infection appear 7–10 days after application

• Chrysoperla carnea

  honeydew and most will fly out of the greenhouse. Life cycle of Chrysoperla carnea You can recognize the different life stages of the green lacewing, Chrysoperla [...] s. The larvae of green lacewings are particularly effective predators. The green lacewing Chrysoperla carnea is used for the control of the following pests: [...] Chrysoperla carnea is available at Koppert as Chrysopa and Chrysopa-E . Best conditions for use of Chrysoperla carnea Chrysoperla carnea is effective in a wide

• Verticillium wilt

  and Verticillium dahlia e are the most important plant pathogens. Verticillium dahlia causes verticillium wilt and early dying of potato. Damage symptoms [...] The symptoms may occur only in parts of the plant. Cutting the stalk horizontally reveals a slight discolouration of the vessels, brown or greenish, but [...] present without clear symptoms or with only partial wilting. Life cycle and appearance of Verticillium wilt Verticillium dahliae survives for prolonged

• Cabbage looper

  and stunted. Life cycle and appearance of Trichoplusia ni Adults can deposit up to 300 eggs on the underside margins of the upper leaves of plants. The [...] sesame and cotton. One of the reasons why this plague can be serious is that the moth is able to disperse widely, reaching distances of up to 200 km. Damage [...] green with a white band on both sides of the body. Pupation takes place in webbed cocoons often on the underside of the host plants. The pupae have a green

• Smaller green leafhopper

  instead of yellow. Often damaged leaves are brown and dry at the margins, red further inwards and green in the centre. Life cycle and appearance of Smaller [...] or vine leafhopper, Empoasca vitis , is mainly a pest of grapevine but can also attack a variety of other fruit crops like for instance apple, cherry, plum [...] white grape varieties, the feeding of the leafhoppers initially causes light green and later yellow discolorations of the areas between the leaf veins,

• Crane flies

  holes of the burrows of the larvae might also be visible. Secondary damage may come from birds and rodents feeding on larvae and digging up turf. Life cycle [...] General The larvae of crane flies , called leatherjackets, live in the soil and feed on roots and shoots (which they pull into the ground of mainly grasses [...] appearance of Crane flies Adult crane flies are large flies with females reaching 45-50 mm across. They have long, spindly legs and one pair of narrow, clear

• Leopard moth

  presence of the caterpillars is indicated by the accumulation of frass and wood particles that comes out of the entry holes. And later by withering of leaves [...] occur in branches or stems of less than 10 cm diameter. Life cycle and appearance of Leopard moth The adults have a wingspan of 45-65 mm and white translucent [...] leaves and die-back of shoots. Infested branches may die and young trees can be killed completely. Trees up to 15 year of age are preferably attacked and the

• European vine moth

  damaged fruits contaminate grape bunches. Life cycle and appearance of European vine moth The adults have a wingspan of 10-15 mm and creamy white forewings with [...] place nearby. Moths of the next generation appear about a week later. The larvae of the second generation feed on the developing clusters of grapes. Their [...] Lobesia botrana ), is an serious pest of grapevine in central and southern Europe. It is also present in parts of Africa and Asia. Damage symptoms The larvae

• Dacnusa sibirica

  parasitize well on Liriomyza sativae. Life cycle and appearance of Dacnusa sibirica The life cycle of Dacnusa sibirica consists of an egg, a larva, a pupa and an [...] orientation of the wasp within the host pupa is the same as that of the leaf miner itself, the head of the wasp thus developing where the head of the leaf [...] with the larvae of Liriomyza trifolii than with the larvae o f Liriomyza bryoniae , it is perfectly capable of developing in the larvae of both species.