Wheat bunt

basidiospores fuse in the middle with a basidiospore of the other mating type so that H-shaped structures are formed. These can germinate directly or form secondary [...] the fungi may form new isolates that can break resistance Use clean, disinfected seed The use of soil fungicides can help reduce the soil-borne inoculum [...] one gene and easily hybridize. There is debate whether they should indeed be considered separate species, since they cause the exact same symptoms. Tilletia

Ervipar

/release. Releases should be repeated weekly during the period when aphid infestation is expected. Consult a Koppert advisor or a recognized distributor of [...] develop inside the aphid, which converts into a leathery mummy. The adult parasitic wasp emerges through a hole at the rear of the mummy. The first mummies [...] introduction site for at least a few days Dosage The dosage of Ervipar depends on climate, crop and aphid density and should always be adjusted to the particular

Oleander aphid

that grows on the honeydew. Growing tips can be deformed. Repeated heavy infestation throughout the year can lead to stunted plant growth. Life cycle and [...] and milkweeds ( Asclepias sp.). The oleander aphid is cosmopolitan, and can be found in tropical to warm temperate regions throughout the world. It probably [...] plant, oleander. Damage symptoms The colonies of bright yellow aphids can easily be seen on the shoots of the host plants. The damage caused by the aphid

Caterpillars

capacity can rapidly decimate a plant. Very small caterpillars are not able to chew and therefore graze the underside of leaves. This causes a window effect [...] other insects. Many of the butterfly species that are active during the day can be strikingly colourful while moth flying at night are usually inconspicuously [...] to a single crop, most are polyphagous. Find solutions for caterpillars in your crop Life cycle of caterpillars Caterpillar damage Caterpillars can cause

Tomato russet mite

Australia and is a pest in tomatoes in all areas where they are grown. Other members of the plant family Solanaceae may be affected to a lesser extent. Damage [...] trichomes (leaf hairs). Affected stems turn a rusty brown colour, and in serious cases they may snap. The fruit can also be affected, and when this happens in tomatoes [...] The first nymphal stage is a transparent white colour and about 0.1 mm long. They usually develop to the 2nd stage within a day. All life stages look very

Trianum effectively controls Pythium in cucumber

over. Those sorts of conditions have a bigger impact on the beneficials than on the thrips, which means I need to be alert. The same goes for caterpillars [...] susceptibility to Pythium. ‘My crop gets 20 hours of light a day, which means it requires a lot of water. That larger quantity of water makes the plant [...] Up until 2019, there was a lot of damage and loss of production at the end of cultivation. Whole mats and whole rows had to be rejected, and the fungus

Angular leaf spot

but also all types of vascular tissue of the crown can be infected, creating a look similar to that of a Phytophthora fragariae infection. Life cycle and [...] t. When conditions are humid, a viscous bacterial exudate forms on the underside of the leaf. This exudate changes to a white film when it dries. Lesions [...] The bacteria are also introduced in a crop in new transplants. This bacterium is very resistant to desiccation and can survive well in dry leaves or leaves

Miglyphus

Combined use Can be combined with Minusa . Storage time after receipt Apply as soon as possible after receipt. If necessary, the product can be stored for [...] Releases should be repeated at least 3 times at weekly intervals or until control is achieved. At low temperatures (<20°C/68°F) it might be better to use [...] use Minusa . Consult a Koppert advisor or a recognised distributor of Koppert products for advice on the best strategy for your situation. Environmental

Cotton aphid

green to black, while aphids produced in overcrowded colonies at a high temperature can be much smaller (from 0.9 mm), and yellow or cream-coloured. Cotton [...] appearance of Cotton aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses [...] shed white skin, betraying their presence in the crop. The cotton aphid can be distinguished from other aphids by the colour of the two cornicles (siphunculi)

Minusa

Combined use Can be combined with Miglyphus . Storage time after receipt Apply as soon as possible after receipt. If necessary, the product can be stored for [...] (>25°C/77°F) and/or higher infestation rates it might be better to use Miglyphus . Consult a Koppert advisor or a recognised distributor of Koppert products for [...] of Minusa depends on climate, crop and leaf miner density and should always be adjusted to the particular situation. Start introduction as soon as the first