Onion fly

wings. The eggs are laid by the female onion fly on the young leaves, necks of onion seedlings or in the soil close to the base of onion plants. The onion [...] advantages over chemical control. It's crucial to remember that nematode treatments are more effective when used in conjunction with other pest management [...] frequent pest that harms allium plants, including leek, garlic, and onion crops. It is a small fly, measuring between 5 and 7 mm long, with a grayish-yellowish

Loose smut of barley

growing tip and the seed primordia. It only becomes visible after head emergence. The teliospores that are formed on systemically infected seeds then infect [...] 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

Effective control with Chrysopa-E!

supplied in a 6-litre bucket containing 10,000 larvae, the eggs are delivered in a 90 ml canister containing 100,000 eggs, so there is a huge gain in terms [...] Aphids and mealy bugs are difficult to control and an increasing problem in many crops in which hotspots can grow explosively. By using an earlier phase of lacewing [...] price of Chrysopa-E , it is possible to use many more beneficials and thus gain better control of pests, with a better return on investment. With Chrysopa-E

Verticillium wilt

intact. In rose, branches die off from the top and purple brown stripes occur on the stem. In tomato, sometimes V-shaped lesions are formed on the leaf [...] are pale-green, then orange-yellow. In the beginning the plant seems to recover at night. The symptoms may occur only in parts of the plant. Cutting the stalk [...] the plant produces gum in the vessels. The presence of both the fungus and the gum causes the xylem vessels to get blocked, which in turn causes the plant

Tomato moth

is a particularly a pest in greenhouses but can also inflict damage on outdoor crops. It is a polyphagous species feeding on plants of 14 families including [...] (Lacanobia oleracea) deposit their spherical eggs on the underside of leaves in groups of 50 to 300, often arranged in layers. The eggs are greenish at first, but [...] completely, and the frass deposited on fruit can reduce their marketability. In fruiting vegetables, large holes can be formed in both green and ripening fruit

Biological Pest Control

chemicals. In biological pest control, beneficial organisms like parasitoid wasps and predatory mites are introduced into agricultural crops to prey on or parasitise [...] populations in check. This approach not only reduces the environmental impact but also minimises the risk of pesticide resistance, making it a sustainable [...] Conservation biological control focuses on enhancing the presence of natural enemies and beneficial organisms in the environment to maintain a balance between

Western flower thrips

many vegetable and ornamental crops in greenhouses, and on various weeds. It is an especially significant pest in cucumber, sweet pepper, eggplants, and [...] (Frankliniella occidentalis) usually pupate in the ground, although pupae can also be found on leaves, in flowers or in other sheltered places. The prepupal and [...] most damaging thrips species in many greenhouse crops. The western flower thrips (Frankliniella occidentalis) can be found on a wide variety of plants, including

FAQ Spidex Vital

Spidex I am used to? No, it is exactly the same Phytoseiulus species as in de former Spidex Vital: Phytoseiulus persimilis. When does it turn from white to red [...] trials on several routes have shown that the optimum transport conditions remain the same. No adjustments will have to be made to your supply chain in case [...] 21 | 2021 www.koppert.com 1. Changes of Spidex What is the difference in the product presentation? Spidex Vital consists of all mobile stages of P

Fruit grower uses Natupol Tripol for outdoor pollination

orchards. Situated in the Betuwe fruit growing region of the Netherlands, the 80-hectare orchard grows apples on 45 hectares and pears on 35 hectares. Apple [...] Alfred Verstegen works together with his brother and nephews on their fruit company, Verstegen VOF in Opijnen, Gerlderland. Six years ago, they introduced Natupol [...] apple orchard in early spring. ‘Although the weather has been unpredictable these last few years, we make sure to place our order for the hives in good time

Strawberry aphid

0.9-1.1 mm. The aphids mainly feed on the underside of young leaves. On outdoor strawberries, winged aphids appear in May and June; these aphids disperse [...] cosmopolitan distribution and is the most important aphid pest of strawberries. It can cause direct damage by feeding and transmits viruses. Life cycle and [...] adulthood. With each moult they shed white skin, betraying their presence in the crop. Reproduction of the strawberry aphid is exclusively by parthenogenesis