Diglyphus isaea

Larval stage: When the parasitic wasp larva hatches, it remains beside its host, punctures it and sucks it empty from the outside, as a result of which the [...] within the order Hymenoptera . It is widely recognized for its role as a biological control agent for leaf miner control. Its ability to effectively target [...] Diglyphus isaea is available in a bottle ( Miglyphus ). Release parasitic wasps between the leaves of the crop in the morning or in the evening The dosage of

Powdery mildew

colonies mostly occur in these crops. In covered roses, the colonies appear first and foremost on the upper side of the leaves. In most crops, the white [...] hardens the cell walls and makes it harder for the fungi to enter the leaves To reduce chances of powdery mildew in greenhouses, it is advised to first ventilate [...] fairly similar in all plant-pathogen combinations. The symptoms are white fluffy colonies, first and foremost on the upper side of the leaf. In severe epidemics

Pierce's disease of grapevine

depends on the plant species: in peach, bacteria are found in high numbers in the roots, whereas in plum, high numbers are found in leaves and fruits. The bacteria [...] die. This happens faster in younger vines than in older ones and faster in susceptible cultivars (within 2-3 years) than in more tolerant cultivars, which [...] deficiency. Infection becomes systemic more rapidly in young trees than in older trees. In the latter, it may stay limited to certain branches. When the leaves

Brown root rot, corky root rot

lycopersici survives in the soil and in buried tomato roots as microsclerotia. The microsclerotia germinate and produce mycelium that in turn infect the roots [...] and aubergine. It causes brown root rot and corky root rot. Damage symptoms The first signs of this disease, are poorly looking plants in localized areas [...] roots with lengthwise cracks. No discoloration is present in the xylem tissues which distinguishes it from wilts caused by Verticillium or Fusarium . Progressive

Angular leaf spot

overwinters in plants and dead leaves, that become the primary source of infection in the spring. The bacteria are also introduced in a crop in new transplants [...] resistant to desiccation and can survive well in dry leaves or leaves in the soil, but not independantly in the soil. Under humid conditions, bacteria ooze [...] the day and cold nights, in combination with high humidity or presence of water. These conditions occur mostly in the spring if it rains or when sprinkler

Charcoal rot

°C and dry conditions. In field crops in temperate regions it is therefore not a problem. How to prevent Charcoal rot Plant in fields with no history of [...] General Macrophomina phaseolina is a common soil fungus in warmer regions, causing charcoal rot. It has a very wide range of host crops, many of which are [...] and appearance of Charcoal rot The fungus survives in the soil and on crop residues as microsclerotia. In corn stalks, survival of up to 1.5 years has been

Spinach

originates in Asia. It is consumed as vegetable and is rich in iron. It is grown as a vegetable worldwide and growths to a height of about 30 cm. It is eaten

Tutasan

Presentation One trap. Preparation Place the pheromone dispenser in the green canister and attach it to the upper central part of the trap Fill the trap with water [...] the Tutasan trap for monitoring and trapping male tomato leaf miner moths in combination with Pherodis Tuta absoluta . Pests Tomato leaf miner moth ( Tuta [...] absoluta ). Crops Tomato. Mode of action The Tutasan trap needs to be used in combination with Pherodis pheromone dispensers. The dispensers release a

Lemon

Citrus limon is a medium, evergreen tree of the Rutaceae family. It is characterized by its aromatic sour taste. [...] About Grown mainly for its juice, this well-known yellow citrus fruit is used widely for culinary and other domestic purposes throughout the world. Citrus

Loose smut of barley

sp. hordei affects barley and can destroy a large proportion of the crop. It is also known as barley smut, or loose smut of barley. Life cycle and appearance [...] during flowering and the infected seeds are the primary source of inoculum in the next crop. The fungus survives inside the seed and when the seed germinates [...] grows upwards inside the plant into the growing tip and the seed primordia. It only becomes visible after head emergence. The teliospores that are formed