• Angular leaf spot

  plants and crop debris Avoid waste piles in the vicinity of the greenhouse or field Resistant cultivars of pepper are available and should be used Prevent [...] lesions look when using different light sources: when reflected light is used, the lesions look dark green, but when transmitted light is used, they are translucent [...] happens both passively and actively. Infection and disease development are favoured by temperatures around 20 °C during the day and cold nights, in combination

• Gummy stem blight

  narrowing of the tip of the mature fruits. The symptoms on stems, leaves and inside the fruits may occur together or individually. Life cycle and appearance [...] water drops, tools and hands of workers. The ascospores are the main source of dispersal of disease upwards in the crop and the conidia for spread of the disease [...] debris and disinfect the greenhouse Choose a cultivar that is less susceptible to internal fruit rot Use clean propagation material During cropping and between

• Black root rot of cucurbits

  are slightly sunken and are mostly formed around the point of attachment of lateral roots and root hairs. The lesions may grow and encircle the root. The [...] black fruit rot. Life cycle and appearance of Black root rot of cucurbits Phomopsis sclerotioides survives in the soil and is a strong saprophytic competitor [...] colonize ‘clean’ or sterilized soil and substrate. It aggregates, so disinfection needs to be applied thoroughly and evenly. Phomopsis sclerotioides forms

• Bacterial wilt, brown rot

  well in water and in many different soil types and on alternative hosts like weeds. It invades the plants through wounds or stomata and then spreads into [...] wounds they make on roots help the bacteria to infect the crop Do not use cut potatoes for propagation, since cutting tubers can increase disease incidence [...] pathogenic bacterium. It is a soil-borne disease and colonises the xylem, causing bacterial wilt and brown rot in a very wide range of potential host plants

• Early blight

  Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause primary infection of the leaves. Survival [...] within five days. Infection is both direct and through wounds and stomata. Spores are dispersed by wind and in some species through the splash of rain [...] How to prevent Early blight Remove crop residues, weeds and volunteer plants. Use clean seed and propagation materials. Practice crop rotation, in particular

• Cottony soft rot

  wilting and death of plants. Life cycle and appearance of Cottony soft rot Cottony soft root ( Sclerotinia sclerotiorum ) overwinters as sclerotia and mycelium [...] in dead and living plant material in or on the ground. Sclerotia germinate at temperatures between 4 and 26 °C with an optimum between 13 and 15 °C. G [...] easily be seen with the naked eye and look like rat droppings. The symptoms may occur on stems but also on leaves, fruits and pods. Root infection often leads

• Crazy roots, hairy roots, crown gall

  which are first white and later turn brown. Only Rhizobium radiobacter causes galls and tumours on underground plant parts and on the crown. Furthermore [...] break open, releasing many bacteria. These are dispersed by rain and wind and by humans and tools. Until now, no bacteria have been isolated from crazy roots [...] plant tissue and causes a genetic change in the plant. How to prevent Crazy roots, hairy roots, crown gall Use clean propagation material Use a strict hygiene

• Glume blotch

  pycnidia and perithecia occur. Perithecia are also formed on dead glumes and stems. In case of severe infection , the heads of wheat become black and the kernels [...] (RH). The optimum temperature for germination of the conidia is between 20 and 25 °C. The ascospores are responsible for wind dispersal of the fungus over [...] (Phaeosphaeria nodorum) is a fungal pathogen of wheat , barley and ryethat induces yield and quality losses. Damage symptoms Phaeosphaeria nodorum or Septoria

• Downy mildew of Cucurbits

  stomata. Life cycle and appearance of Downy mildew Pathogens causing downy mildew are not fungi but Oomycetes and related to Pythium and Phytophthora. They [...] during propagation and maintaining a warm and dry climate in greenhouses. Use hygiene measures. Start clean, remove crop residues and prevent splashing [...] pumpkin, watermelon and squash. Damage symptoms Downy mildew pathogens infect mostly the leaves but occasionally also stems and fruits. They cause lesions

• Cerall: 100% Biological Seed Treatment Against Fungal Diseases

  July 26, 2024

  their dormant phase and begin to multiply. They grow around the seeds and first roots, competing with any pathogens present for space and nutrition. They also [...] Easy To Use Cerall is a liquid formulation that is ready to use and can be applied directly with regular liquid seed treatment equipment. You can use the product [...] seed treatment not only protects seeds against diseases such as Fusarium and Tilletia caries (common bunt), but also supports the growth and development of