Powdery mildew

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 by only opening [...] this is not relevant for other diseases that are inhibited by reducing the RH In fruit trees, pruning should be done early in the season Do not provide [...] the leaves. Many sweet pepper cultivars react to powdery mildew infection by dropping leaves that are not infected yet. It depends on the cultivar how soon

Privacy Statement

subject. We do our very best to satisfy any requests to exercise such rights. Do you have any feedback for us? Please let us know. If you wish to exercise [...] subscribe to our newsletter on our website. If you give your consent to do so, we will register the email address you provide and use it to send you the [...] or button) to other websites which relate to a specific aspect of our website. This does not necessarily mean that Koppert is connected to these other

Caterpillars

night are usually inconspicuously brownish are greyish. Adult butterflies do not damage crops. Most of them feed on nectar. In contrast, the caterpillars [...] plant tissue. Many species cause damage to crops. The most harmful caterpillars that occur in greenhouses belong to the Noctuidae (the noctuid or owl moths) [...] name ‘leafroller’ refers to the fact that the caterpillars often live in rolled-up leaves. Although some species are restricted to a single crop, most are

Parasitic wasps

fluids, which can be important for their reproduction. It's important to note that not all species of parasitic wasps engage in host feeding, and the primary [...] agriculture. Unlike chemical pesticides, parasitic wasps are natural and do not harm beneficial insects, animals, or the environment. Benefits of parasitic [...] outbreaks of specific pest species. How do parasitic wasps control pests? Parasitic wasps employ two primary methods to control pests: parasitization and host

Cottony cushion scale

but is not generally a pest in these situations. Life cycle and appearance of Cottony cushion scale As with all scale insects, the females do not have wings [...] cushion scale, Icerya purchasi , is considered to have originated in Australia. It was accidentally introduced to California in about 1868 and devastated the [...] mating is not necessary for reproduction. The adult male has well developed antennae and one pair of dusky wings, The adult ‘females’ produce 500 to 2000

Oleander aphid

an obligate parthenogenetic species; thus the adult aphids are all female and males do not exist. Adult females may be winged or wingless. The winged adult [...] (tip of abdomen). Nymphs are similar to apterae in appearance except that they are smaller. Size ranges from 1.5 to 2.6 mm in length. Females are viviparous [...] throughout the year can lead to stunted plant growth. Solution Finder Find solutions for your crop Damage symptoms How to get rid of Oleander aphid

General Conditions Koppert

Failure to do the above will result in the Buyer’s right to invoke the failure of the Natural Enemies, V1 Pollinators and/or Products to answer to the agreement [...] prejudice to Koppert’s right to demand compliance with the obligations to which the penalty clause pertains and without prejudice to Koppert’s right to claim [...] agreements. These GC also apply to all of Koppert’s offers and work performed by Koppert. These GC also apply to all Advice and Services provided by Koppert

Aphidius ervi

agent for integrated pest management . Adult wasps do not feed on aphids but require only nectar and water to sustain themselves. Life cycle and appearance [...] available at Koppert as Ervipar . Aphidius ervi products Ervipar Expand all items How to use Aphidius ervi The parasitic wasp Aphidius ervi is available in [...] internal tissues. They use their mouthparts to puncture the aphid and consume its bodily fluids, ultimately leading to the host's demise. In environments where

Western flower thrips

instars do not feed and only move if disturbed. In the adults both pairs of wings are fully developed. Damage symptoms Thrips cause damage to plants by [...] Severely infested flower buds may not open at all. Fruits can also be damaged, even at low densities, giving rise to deformities such as the “pig-tail” [...] with a saw-like ovipositor. Larvae are nearly transparent white or yellowish to orange-yellow, with a large head and bright red eyes. Adult females are very

Leaf stripe

distorted and failing to emerge from the sheath. Ear length and the number of kernels may be reduced and kernels may be brown. The symptoms do not always occur [...] infection does not occur at soil temperatures above 15 °C. How to prevent Leaf stripe Produce seed in semi-arid environments without irrigation, to decrease [...] Infection occurs between 10 and 33 °C. Infected seeds can look healthy and do not necessarily show symptoms of infection. Soil temperature during seedling