• Greenhouse whitefly

  the population is very large, feeding on plant sap can affect the physiology of the plant, as a result of which growth is retarded. In full sunlight, leaves [...] leaf damage can in turn influence the development of fruit and lead to a reduction in yield. The honeydew deposited on fruit makes it sticky. Dirt adheres [...] and the growth of sooty moulds ( Cladosporium spp .) is encouraged, making it unsuitable for sale. In serious cases the fruit will rot. Sooty moulds also

• Bacterial spot

  due to rain, fog or overhead irrigation. Infection is through stomata and wounds. The dispersal is in windblown water drops, mechanical means such as clipping [...] Xanthomonas vesicatoria is a bacterium that causes bacterial leaf spot on peppers and tomatoes. Damage symptoms Xanthomonas vesicatoria in tomato causes small [...] volunteer tomato plants in the field and on diseased plant debris. The bacteria are also seed-transmitted. Disease development is favoured by temperatures

• trial results wireworm control

  been selected to target specific pest insects. How does it work? After application, the nematodes set out in search of their prey. They can actively hunt [...] Wireworm control with beneficial nematodes Results in irrigated potato Wireworms damage in irrigated potato (% of potatoes with holes) 2023, Italy 80 [...] 80 20 60 15 Damage (%) Efficacy (%) Casea efficacy against wireworms in irrigated potato (% damage reduction compared to untreated control) Emilia-Romagna

• Glasshouse potato aphid

  sweet pepper it secretes a toxic substance, which leads to deformations in the growing tip of the plant. Precisely where the plant is pierced is unimportant [...] presence in the crop. The wingless adult stage of the greenhouse potato aphid is rather squat, of medium size (1.8 - 3.0 mm long) and oval in shape. It has [...] potato aphid ( Aulacorthum solani) is a native European species of aphids , seriously affecting crops of sweet pepper in particular. These aphids further

• Natupol Fly

  interactions in high temperatures Application Put the required amount of pupae in a cup Place the cup in the crop on the soil. Do not scatter the pupae in the crop [...] released in the crop Dosage Adjust the quantity in relation to the number of flowers per m². As a general rule apply 100-300 pupae per m² per week. It is important [...] emerge over time, depending on the temperature If outdoor temperature is below 18°C it is best to keep the pupae indoors at a temperature of 20-25°C untill

• Wheat bunt

  kernels, which in turn become a source of disease in the next season. Infection is strongly correlated to temperature and precipitation in the first 11 days [...] General Tilletia tritici and Tilletia laevis only differ in one gene and easily hybridize. There is debate whether they should indeed be considered separate [...] tritici and Tilletia laevis survive as teliospores in the soil or on seed. These teliospores germinate in response to moisture and form basidiospores, also

• Buckthorn-potato aphid

  has a nearly cosmopolitan distribution and is a major pest of potatoes, where it also transmits viruses. It also attacks a large number of other crops [...] Buckthorn- potato aphid does not cause plant deformation. The major problem in potatoes is the transmission of viruses. Life cycle and appearance of Buckthorn-potato [...] cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with unfertilized

• Municipality Venray: biological control of oak processionary caterpillars

  nests. It is possible that there has been more drift during spraying in those places, which means that the nematodes are more easily blown away. In some [...] In the 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 [...] nematodes at locations in outlying areas where there might be protected species of butterfly and moth. The major benefit of Entonem is that nematodes kill

• Casea

  Spray the solution as soon as it is prepared and within a short timeframe. Do not store mixed suspensions Dosage Casea is typically applied against foliar [...] Koppert representative/distributor for more information Spray in the evening (or morning in some cases) allowing nematodes to work for several hours within [...] compatible product The product is safe for most beneficial insects and mites, but can have some effect on a few when in direct contact with foliar applied

• Phytophthora blight

  higher water content than is optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as oospores [...] infection is either by germinating sporangia or by zoospores produced in the sporangia. For germination on above-ground plant parts, leaf wetness is required [...] required. Dispersal is by wind and rain causes the pathogen to be returned to the soil from infected plants. Dispersal in the soil happens via water, since