Yellow rose aphid

North Africa, parts of Asia and South America. It attacks plants of the family Rosaceae and is a pest of strawberries and roses. Damage symptoms The yellow [...] reduced, affecting production. The yellow rose aphid is also a vector of several viruses attacking strawberries and roses. Life cycle and appearance of Yellow [...] aphids usually live in young unfolded leaves. Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result

Chrysoperla carnea

outer cocoon is 8 mm long and 4 mm thick. The inner more closely spun cocoon is off-white and egg-shaped, about 3 mm long and 2.5 mm thick. The space between [...] enemy Chrysoperla carnea is available at Koppert as Chrysopa and Chrysopa-E . Best conditions for use of Chrysoperla carnea Chrysoperla carnea is effective [...] search for prey randomly on the plant. Their efficiency is seriously impaired by the presence of leaf hairs. The larvae are not easily observed and are mainly

Lyprauta

yellow and embedded in a dense web. Adult flies are long and slender and have a dark brown head with short antennae. The thorax is brownish-yellow and the [...] droplets of oxalic-acid containing saliva that they use for catching and killing prey and for shelter. [...] number of flower stems and a longer vegetative stage. The root damage can also form entry points for pathogens. Life cycle and appearance of Lyprauta The

Eretmocerus eremicus

distributor of Koppert products for advice on the best strategy for your situation. Best conditions for Eretmocerus eremicus For optimal efficacy of the [...] the third instar), a pupa, and finally the adult wasp. Females prefer the second and third larval instars of whiteflies for egg-laying, depositing eggs [...] control agent of whiteflies in agricultural and horticultural settings. Eretmocerus eremicus is used for the control of the following pests: Tobacco whitefly

Praon volucre

the opening The dosage of Aphiscout depends on climate, crop and aphid density and species, and should always be adjusted to the particular situation. Start [...] single species product ( Aphilin , Aphipar , Aphipar-M or Ervipar ). Consult a Koppert advisor or a recognized distributor of Koppert products for advice on [...] the best strategy for your situation. Best conditions for Praon volucre Aphiscout is effective at temperatures between 16°C/61°F and 30°C/86°F. Behaviour

Ephedrus cerasicola

strategy for your situation. Best conditions for use of Ephedrus cerasicola The optimal temperature for population development is between 20 and 25°C. Mummies [...] belongs to the family Braconidae and subfamily Aphidiinae. This natural enemy is used for the control of aphids in agricultural and horticultural settings. Ephedrus [...] the opening The dosage of Aphiscout depends on climate, crop and aphid density and species, and should always be adjusted to the particular situation. Start

Greenhouse whitefly

gerbera and poinsettia. Greenhouse whitefly Trialeurodes vaporariorum adult Damage symptoms The larvae of whitefly need a lot of protein for growth, and thus [...] from tropical and subtropical America, probably Brazil or Mexico. Hundreds of plant species from different families serve as suitable hosts for this whitefly [...] retarded. In full sunlight, leaves can wilt and fall. Such leaf damage can in turn influence the development of fruit and lead to a reduction in yield. The honeydew

Leek moth

countries and has been introduced to parts of Canada. The larvae of Acrolepiopsis assectella feed on cultivated Allium species, primarily leek and onion, [...] but also garlic and chives. Damage symptoms The vegetative and flowering stages are most widely affected, but the seedling stage is sometimes affected [...] affected in nurseries. Stored onions and garlic are also damaged. After hatching, the young larva explores the surface and mines the green leaves. On reaching

Pierce's disease of grapevine

normal and look stunted. Twigs and branches die and the foliage becomes thinner, but the trees don’t die of the disease. Olives: Scorch symptoms and desiccation [...] killed and the trees die. Life cycle and appearance of Pierce's disease of grapevine The bacteria live in xylem vessels in roots, stems and leaves and multiply [...] symptoms. More and more plant species are discovered as hosts. Xylella fastidiosa is best known in grapevine, stone fruit (peach and plum) and citrus, where

Apple

is best known for the apple, the tree’s usually sweet and pomaceous fruit. Apples originate from Asia and Europe and were grown there for thousands of years [...] North America. The deciduous apple tree belongs to the rose family and is now cultivated for its fruit all over the world. It is the most common cultivated [...] a wide range of bi- or tri-colored cultivars. The skin of the apple is protected by a layer of epicuticular wax. Apples usually have a yellowish-white coloured