• Angular leaf spot

  look dark green, but when transmitted light is used, they are translucent. When conditions are humid, a viscous bacterial exudate forms on the underside [...] side of the leaf as irregular spots which are first reddish brown and then become necrotic. The foliar symptoms are the most important, but also all types [...] irrigation is used. Healthy, well growing plants are more susceptible than diseased or stressed plants. How to prevent Angular leaf spot Use clean propagation

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• Spidex Vital® sets new standards in spider control

  May 12, 2021

  but already its performance is striking a chord with growers, and there are strong indications of widespread market acceptance. From baseline research [...] has again exemplified Koppert’s commitment to the markets it serves. “We are continually looking at new and improved solutions for pest control, and Spidex [...] principle food source in the old rearing system, is no longer required. Predators are white rather than red Many soft fruit, ornamental and salad producers have

• Leaf stripe

  temperatures below 12 °C are most conducive for this disease and infection does not occur at soil temperatures above 15 °C. How to prevent Leaf stripe Produce [...] first, second and third leaf and subsequently on other leaves. Yellow stripes are formed at the base of the leaf and the leaf sheath. They gradually extend [...] primary infection. The fungus spreads from the seed into the seedling. Conidia are produced on the infected leaves when humidity is high and wind-dispersed to

• Bacterial soft rot, bacterial stem rot

  normal colour. On the fruits, lesions first are small and sunken, water-soaked and light to dark brown. They are adjacent to wounds and natural openings at [...] pathogen in plants that are infected by other pathogens. The bacteria that causes black leg in potato is a different subspecies. How to prevent Bacterial

• Gummy stem blight

  veins) or the hair bases. Stems are infected through wounds and by the infected leaves through the petioles. Fruits are infected through the flowers. The [...] newly produced ascospores are dispersed by air and the conidiospores by water drops, tools and hands of workers. The ascospores are the main source of dispersal [...] upwards in the crop and the conidia for spread of the disease downwards. How to prevent Gummy stem blight Before cropping: Remove all crop debris and disinfect

• Crazy roots, hairy roots, crown gall

  takes place via wounds. After infection, galls are formed which break open, releasing many bacteria. These are dispersed by rain and wind and by humans and [...] General Rhizobium bacteria are soil bacteria that fix nitrogen after becoming established inside root nodules of legumes. Additionally, pathogenic Agr [...] root growth. All four species cause the growth of galls on the stems, which are first white and later turn brown. Only Rhizobium radiobacter causes galls

• Larvanem Has Been The Number One Product Against Vine Weevil For Over 25 years

  August 22, 2024

  process, so they are larger than other nematodes. This means that they have more energy, can target larvae more accurately, and are much more effective [...] 'That's how we kept on improving the growing and nutrition. Thanks to the strict checks we use in our production process, our nematodes are free of any [...] Larvanem is the most effective means of combating vine weevil. Of course, there are also chemical products for use against adult vine weevils, but without getting

• Early blight

  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 [...] These spots can be distinguished by the dark and brown concentric rings that are caused by sporulation. Species may differ in specific symptoms. Damage symptoms [...] halo restricted by leaf veins. Lesions can easily rupture. Other symptoms are brown lesions on stem and foot. On fruits, dark sunken, leathery lesions occur

• Fusarium wilt

  whole plant wilts. Other symptoms are brown discolouration of the xylem vessels which can be seen when the stems are cut. In banana, whole plantations [...] Fusarium is widespread and can infect a range of host crops. Many species are considered weak pathogens and can only infect wounded or stressed host plants [...] Fusarium wilt Fusarium oxysporum has many different formae speciales which are each selectively pathogenic on a limited number of crops. Even within one