Buckthorn-potato aphid

symptoms Direct damage, caused by sucking of sap is rarely seen. Sometimes, large populations build up on potatoes or other hosts, which can cause growth [...] body length. The aphids overwinter as eggs on buckthorn. After emerging in spring, the aphids mainly feed on the underside of leaves of their summer hosts [...] potato aphid , Aphis nasturtii , has a nearly cosmopolitan distribution and is a major pest of potatoes, where it also transmits viruses. It also attacks

Fruit grower uses Natupol Tripol for outdoor pollination

region of the Netherlands, the 80-hectare orchard grows apples on 45 hectares and pears on 35 hectares. Apple varieties grown include Elstar, Goudreinetten [...] include Conference, Tessa and Migo. ‘Our oldest apple plot is 15 years old and the youngest is one year old,’ Alfred explains. ‘We constantly innovate and [...] Fruit grower Alfred Verstegen works together with his brother and nephews on their fruit company, Verstegen VOF in Opijnen, Gerlderland. Six years ago

Chrysopa

their body fluids. Visual effect Prey is sucked out, shrivelled skins are difficult to find. Chrysoperla carnea is active mainly during the night. The larvae [...] before use Apply on infested leaves For hotspot treatments, apply Chrysopa directly in the heavily affected areas The product can be applied on the rock wool [...] weekly intervals until control is achieved. Consult a Koppert advisor or a recognised distributor of Koppert products for advice on the best strategy for your

Entonem keeps young orchids free from fungus gnats

In the interim, the crop is treated with a bacterial preparation. Internal cultivation adviser Jan Mulder explains, ‘It is essential that we do something [...] over the young plants in a fine mist. This is followed by a second fine mist to rinse off nematodes that are on the leaves. A while later, I collect a few [...] Mulder. ‘Our dosages and introductions have therefore always been on the high side. It is better to use a little too much than not enough; infestations must

Pollination checklist Natupol Fly

chemical applications on Natupol Fly generally resemble the side effects on bumblebees. For further information on side effects on Natupol Fly, search in [...] es, the fully-grown flies emerge over time, depending on the actual temperature. Natupol Fly is supplied as pupae in cardboard tubes. Use 15 ml of pupae [...] (Bombus spp.). Do not release Natupol Fly without preparation if the temperature is below 15 ˚C. The outcome will be unpredictable and will often take longer

Municipality Venray: biological control of oak processionary caterpillars

Entonem is that nematodes kill fewer other caterpillars , which means they are less harmful to biodiversity. This is something that is high up on the political [...] positive. ‘The trees that we have treated have been 90% cleared. What is interesting is that avenues running east to west are typically free of oak processionary [...] Municipality of Venray a third of the tree stock in the area, some 11,000 trees, is oak. ‘We’ve been using Koppert’s nematode product Entonem as a curative measure

Black tea thrips

stage which is light yellow with red eyes and short wing pads. The pupal stage is slightly larger, with longer wing pads and larger eyes. It is yellowish [...] Heliothrips haemorrhoidalis , is widely distributed in the tropics and subtropics; it also occurs in greenhouses of temperate areas, is highly polyphagous, and [...] thrips is parthenogenic, it reproduces without mating, and males are rare. The adults are poor fliers and tend to remain in the shaded areas on the plant

Limonica Ulti-Mite

us limonicus is most effective at temperatures between 13 and 25°C (55 and 77°F). It is not effective above 30°C (86°F). A. limonicus is sensitive to relative [...] after 4 weeks if the pest is not controlled. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for [...] over a period of several weeks. Using their piercing mouthparts, they feed on prey by extracting its contents. The Ulti-Mite slow-release sachet, made from

Pollination

Pollination is the transfer of pollen from the anthers of the flower to the stigma of the flower. If the pollen is transferred from anther to stigma on the same [...] flower it is called self-pollination. Cross pollination, is the transfer of pollen from the anther of one flower to the stigma of another flower on the same [...] What is pollination? Pollination is an annual challenge for growers when it comes to the production of vegetables, fruit and seed. Well pollinated crops

Integrated Pest Management

in agriculture is crucial for sustainable farming. It reduces the reliance on chemical pesticides, which can have adverse effects on both crops and the [...] What is IPM? Integrated Pest Management, often referred to as IPM, is a sustainable and environmentally responsible approach to pest management. It employs [...] approach is not just about eliminating pests; it's about achieving a balance in the ecosystem. The principles of IPM Prevention IPM focuses on prevention