• Aphidius colemani

  of the Aphidiidae. First the host is examined by drumming with the antennae. This gives the wasp the information about whether the aphid is the right species [...] of the aphid population by the presence of the parasitic wasp also has an effect: the alarmed aphids secrete a warning substance, which affects the entire [...] causing aphids to drop from the leaf and fall to the ground. Although many aphids die as a result, many will survive and migrate to other plants to begin new

• Ephedrus cerasicola

  in length. The parasitic wasp lays an egg inside the aphid where the larva of the parasitic wasp will develop. Before the development of the larva has ended [...] of the label back onto the label Turn the lid until the small holes align with the opening The dosage of Aphiscout depends on climate, crop and aphid density [...] cocoon inside the aphid. This causes the parasitized aphid to swell and harden into a leathery, black mummy. The mummy is more rounded compared to Aphelinus

• Nematodes established solution for Nesidiocoris in France

  validated in the field. The results are very clear. It is very effective on the larvae. The nematodes also act on Macrolophus , which is biologically very [...] on several blocks to regulate the bug and have tried several application methods: the small backpack sprayer directed at the head of the plant in a very [...] very localized way, and also the treatment robot, which is used by blocking the lower nozzles so that it acts only on the head and avoids our Macrolophus

• Diglyphus isaea

  host and crawl back into the mine to pupate. There are three larval instars: the first is colourless and transparent, the second is yellow and semi transparent [...] body, and the third larval instar is blue-green. The full-grown larva usually pupates in the mine some distance from the dead host. Pupal stage: The pupa lies [...] stage: The appearance of the adult is already clearly visible. Pupae are often visible through the leaf. The parasitic wasp escapes from the mine by making

• Pierce's disease of grapevine

  along the margin or the tip from early to midsummer. The necrotic area spreads over the leaf from the margin and is marked by a chlorotic band. In the beginning [...] in the leaves to neighbouring peach trees with the bacteria mainly in the roots is much more successful than the other way around. In general, the low [...] plums): In peach, the canopy of infected plants is compact and umbrella-like due to the shorter internodes. The foliage is denser and the leaves are a darker

• Manual Growing lights

  important to give the bumblebees the opportunity to work during the hours with the most daylight. Therefore, we advise using an automatic opening and closing [...] of the hive to help the bumblebees find their way back to their own hive. Tests showed that the blue door led to 12% more direct entries of bumblebees [...] system When using the Wireless BeeHome system, growers can choose to let the bumblebees fly when there is enough daylight present. It is best to place a maximum

• Two-spotted spider mite

  cause damage to the host plant by feeding on plant sap. They mainly occur on the underside of leaves where they pierce the cells and suck out the contents [...] lead to loss of the crop. The nymphs and adults also produce webs, and plants can get completely covered with such webs in which the mites live. The webbing [...] active than the females, with a body that is narrower and more pointed at the rear. Colour is very variable: from light yellow or orange to dark yellow

• Tobacco whitefly

  sugar, and the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of [...] influence the development of fruit and lead to a reduction in yield. The honeydew deposited on fruit makes it sticky. Dirt adheres to the fruit, and the growth [...] General The tobacco whitefly ( Bemisia tabaci ) belongs to the family Aleyrodidae , and the sub-family Aleyrodinae . This insect was first identified on tobacco

• Trial_and_Field_results_nematodes_in_fruit_orchards_EN_-_Koppert.pdf

  mix into the tank. The sprayer is filled halfway and the bucket with the nematodes is injected into the preparation. And finally, we complete the volume [...] water to correspond with the quantity of nematodes,’ Michel explains. ‘It’s easy to dilute in this way.’ Michel says it is easy to apply if the ground [...] reduce the pressure.’ Michel reports that the benefit of using Capirel nematodes is that it can also be used as a preventive treatment in the autumn to reduce

• Outdoor crops pollination advice

  one day to allow the bumblebees to find food sources. Placement To maximize pollination results, evenly position the hives throughout the plot. The number [...] days before the flowering period begins. The bees will start pollinating as soon as the flowers open. Ensure that the hive is positioned in the crop immediately [...] depends on the crop and the presence of other pollinating insects. Position the hive horizontally, so that the bumblebees always have access to the sugar water