Aphidius ervi

remains dry and is not moved from its introduction site for at least a few days The dosage of Ervipar depends on climate, crop and aphid density and should [...] wasps do not feed on aphids but require only nectar and water to sustain themselves. Life cycle and appearance of Aphidius ervi Aphidius ervi is a very [...] ervi The parasitic wasp Aphidius ervi is most effective between 20 and 25°C (68 and 77°F). This natural enemy is not effective at temperatures above 30°C/86°F

Koppert Foundation

aims to contribute to sustainable solutions for horticulture and agriculture and improvement of the health and availability of food and nutrition for those [...] can find more information in English and Dutch on www.koppertfoundation.org . Do you need help with explanation and/or application? Please contact your

Whitefly

can wilt and drop. Such leaf damage can in turn influence the development of fruit and lead to a reduction in yield. By sucking plant sap and secreting [...] also develop on the leaves, reducing photosynthesis and transpiration. Viruses can be transmitted from one plant to another. Both T. vaporariorum and B. [...] whitefly , Trialeurodes vaporariorum , and the tobacco whitefly , Bemisia tabaci . Both are widespread, polyphagous and are broadly comparable in outline.

Pomegranate bacterial blight

Relative humidity above 50% and temperature between 25 - 30 0 C, over-use of nitrogen fertilizer, micronutrient deficiency and reduced plant health leads [...] leads to swift development of bacterial blight. Symptoms Development of water-soaked spots which turns to dark black colour oily appearance on leaves results [...] defoliation. The pathogen also infects branches and stem as water soaked necrotic spots causing girdling and cracking symptoms. Necrotic water-soaked spots

Brown root rot, corky root rot

e disease causes more and more destruction of the root system and subsequent loss of vigour and further wilting. Life cycle and appearance of Brown root [...] soil and in buried tomato roots as microsclerotia. The microsclerotia germinate and produce mycelium that in turn infect the roots of tomato and other [...] are known: pepper, melon, aubergine, squash, spinach and safflower. The disease develops between 8 and 32 °C, but the fungus prefers low temperatures. Therefore

Chili pepper

are white and have a greenish white or greenish yellow corolla. The plant’s berries are very small (10–20 millimetres (0.39–0.79 inch) long and 3–7 millimetres [...] (0.12–0.28 in) in diameter) and acrid, their shape is ellipsoid-conical to lanceolate. The fruit (the peppers) usually develop from a pale yellow to a bright

Greenhouse 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 [...] moulds also develop on the leaves, reducing photosynthesis and transpiration. Viruses can be transmitted. The consumption of plant sap and secreting of [...] gerbera and poinsettia. Find solutions for whitefly in your crop Damage symptoms The larvae of whitefly need a lot of protein for growth, and thus consume

Pollination checklist outdoor

on the crop and the presence of other pollinating insects. Bumblebees and honeybees are able to complement each other's pollination work and can therefore [...] visited by bumblebees in addition to the target crop. You should therefore mow or cut down any flowering weeds in and around the area to be pollinated. Protect [...] caution when using pesticides before and during flowering. Some pesticides can be harmful for pollinating insects and may also have long-term effects. Discuss

Cucumber

diameter. Cucumbers develop from flowers and their seed develop within the fruit, therefore in botanical terms they are classified as berries. However [...] cucumber plant has large leaves and it produces an elongated, cylindrical fruit that may become as long as 60 cm or 24 inches long and 10 cm or 3.9 inches in diameter [...] However, like tomatoes and squash, cucumbers are often regarded, prepared and eaten as vegetables. Cucumbers consist of water for more than 90%.

Corn earworm

aubergine, pepper, and tomato. They primarily feed on flowers and fruit from the host plant, as well as on the corn of immature cobs and ears. Adults of corn [...] the cold reduces or halts their development. Damage symptoms The female lays small quantities of eggs, between one and three, in the hairs of green ears [...] corn. In other crops, they prefer flower buds and soft fruit. They cause visible damage through feeding, and some larvae can also be seen on the surface