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Verticillium wilt

of the plant and produces spores that are transported upwards with the transpiration stream. As a defence mechanism, the plant produces gum in the vessels [...] vessels. The presence of both the fungus and the gum causes the xylem vessels to get blocked, which in turn causes the plant to wilt. Spores may be wind-dispersed [...] wind-dispersed to new hosts. In the senescent tissue, the resting mycelium or the microsclerotia are formed. The spread of the fungus by mycelium growth is limited

Bacterial canker of tomato

wounds and then growing into the vessels of the plant. Plant growth is inhibited and the plant wilts because the xylem vessels become blocked. The bacterium [...] centre. In potato, the disease usually only occurs in the second half of the season. The first symptoms are wilting of the lower leaves and subsequent expansion [...] expansion of the wilt upwards. Cutting the stem at the foot shows whitish ooze with bacteria in the case of C lavibacter infection, but other than that the disease

Angular leaf spot

lesions on the underside of the leaf. They enlarge to angular spots, often limited by the small veins. The distinctive feature is the way the lesions look [...] visible on the upper side of the leaf as irregular spots which are first reddish brown and then become necrotic. The foliar symptoms are the most important [...] Xanthomonas fragariae overwinters in plants and dead leaves, that become the primary source of infection in the spring. The bacteria are also introduced in a crop

IPM app

a Scout App and an online Dashboard. The Scout App works with GPS outdoors and has an intuitive user interface. The Dashboard gives the grower insight [...] increase the efficacy of control agents, thereby reducing the need for pesticides and increasing crop health and yield. For more information and a demo visit [...] for sustainable food production and increased pesticide restrictions. Scouting is a significant part of pest management which can assist the grower to make

Spidex Vital® sets new standards in spider control

reliability and consistency. The original system is now obsolete, which means that Tetranychus urticae , which was the principle food source in the old rearing [...] not congregate around the rim of the applicator bottles when applying the product manually. The fact that they remain within the carrier is a positive [...] Airbug® and Mini-Airbug®. For strawberry crops, the Natutec Drive ® offers the most efficient option. Once applied to the crop, the white P. persimilis actively

Optimising disease biocontrol in propagation

weaken and kill’ strategy, where the fungicide weakens the target, and T. harzianum completes the killing process . For further details on the propamocarb [...] infection by pathogens that infect the stem base. If infected, cuttings may, depending on the pathogen, develop a dark brown or black lesion that extends upwards [...] pathogen spores will succumb to the treatment, if the recommended concentration, and pathogen exposure, is maintained during the disinfection process. Since

Tomato

through the leaf tissue, creating distinctive mines that can severely damage the foliage. As a result, the plant's ability to photosynthesize and produce [...] ) can cause both leaf and fruit damage, further exacerbating the yield loss. The Cotton bollworm ( Helicoverpa armigera ) and the Beet armyworm ( Spodoptera [...] honeybees, but bumblebees are the perfect fit for effective pollination of the crop. Adequate pollination ensures that the ovaries in the flowers are fertilized

About Koppert

microbials that support, protect, and strengthen crops. Improving plant health both above and underground. Since 1967, we’ve been helping growers worldwide cultivate [...] Biocontrol is our Nature The answers to many of today’s agricultural and environmental challenges are already out there: in nature itself. At Koppert, [...] understand, and apply these natural solutions in partnership with nature. Using natural enemies to control pests, bumblebees for pollination , and microbials

Oleander aphid

viviparous and parthenogenetic, meaning that they deposit nymphs rather than eggs and that the progeny are clones of the adult female. The nymphs feed [...] aphids can easily be seen on the shoots of the host plants. The damage caused by the aphid colonies is mainly aesthetic due to the large amounts of sticky honeydew [...] produced and the resulting black sooty mould that grows on the honeydew. Growing tips can be deformed. Repeated heavy infestation throughout the year can