Early blight

occur at the side of the stem. Life cycle and appearance of Early blight From the primary infection of leaves, Alternaria solani can spread to the flowers [...] particular when spores surviving in the soil are the main source of infection. Especially wheat and barley reduce the number of surviving conidia in the soil [...] humidity (RH) of over 90% or when the leaves are wet. Small differences in optimum temperature occur between species, but in general the risk of Alternaria

Blueberry

berries. The plant belongs to the section of Cyanococcus and the genus Vaccinium (cranberries, bilberries and grouseberries also belong to the genus Vaccinium) [...] a dark blue/purple colour when ripe. The berries are protected by a layer of powdery epicuticular wax, commonly known as the "bloom". Blueberries usually [...] meters (13 ft) in height. The berries are usually 5–16 millimeters (0.20–0.63 inch) in diameter and have a flared crown. The berries are greenish pale

Soybean

its edible beans. The fruit of the plant is a hairy pod, that grows clustered in small bunches of three to five pods. Each pod measures between 3-8 centimetres [...] more protein produced per acre than when planting other crops. Major producers of soybeans are Argentina, Brazil and the United States. Soybeans are now an [...] diameter. Soybean seeds vary greatly in size and the hull can be black or brown, but also blue, yellow or green. When planting soybean plants, there is considerably

Phytophthora blight

from the root to the foot, but direct infection of the foot also occurs. Exudates leaking from growing root tips promote germination and attract the zoospores [...] readily move through water. This explains why the disease spreads more rapidly when the water content of the soil or substrate is higher than normal or optimal [...] fungal growth on the leaves. The centre is grey-brown with a light-green edge. On the stem, elongated brown lesions occur, usually circling the stem. On potato

Don Sanchez Fresh innovates with biological control in avocados

them to make the decision to implement this tool in the production of Hass avocado. The result has been an effective and safe control of thrips , crystalline [...] fear. You need the help of Koppert consultants to know which substances affect the performance of beneficial insects. It also takes a lot of dedication to [...] production when it successfully controlled the white mite, a pest that had been a major problem for several berry growers in the region. That was when they learned

Pherodis

of trap depends on the species to be monitored. The species-specific sex pheromone lures males of the target pest into the trap. Trapping males also aids [...] dispenser. Preparation Collect the sachets containing the pheromone dispensers from the cold store and open the sachets Do not touch the dispenser, since manual [...] to other areas Application Place the dispenser in the trap and place the trap in the right position as indicated for the particular trap Wash your hands

Green peach aphid

families. Damage symptoms Of all the aphids , the peach potato aphid ( Myzus persicae subsp. persicae ) is the most important vector of viral diseases. It can [...] from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation [...] to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky

Steinernema carpocapsae

killing the host within a few days. The nematodes then feed and reproduce within the cadaver of the dead host, resulting in the emergence of a new generation [...] nematodes penetrate the pest's body through natural openings. Once inside the pest, the nematodes release symbiotic bacteria, typically of the genus Xenorhabdus [...] in direct sunlight The moisture content of the soil must be kept high for several days after application. When possible, irrigate the crop before and right

Western flower thrips

finally the adult insect. The eggs of the western flower thrips (Frankliniella occidentalis) are laid in leaves, flower petals and in the soft parts of stalks [...] crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations become serious the leaves themselves can shrivel. Western flower thrips [...] disturbed. In the adults both pairs of wings are fully developed. Damage symptoms Thrips cause damage to plants by piercing the cells of the surface tissues

Grapes

cultivars of the Vitis vinifera are the basis of wine production around the world. All the usual wine varieties are made from (different) types of Vitis vinifera [...] About The common grape vine ( Vitis vinifera ) is a species of Vitis . The plant comes originally from the Mediterranean region, central Europe and so [...] and 10,000 varieties of Vitis vinifera grapes, but only a few play an important commercial role when it comes to the production of wine, but also table