• Fusarium wilt

  oxysporum is the only Fusarium that actually grows inside the vessel system of the host plant and spreads upwards inside the plants. The other species [...] Fusarium oxysporum is the species causing vascular wilt. First the leaves turn yellow and wilt, mostly on one side of the plant. Finally, the whole plant wilts [...] brown discolouration of the xylem vessels which can be seen when the stems are cut. In banana, whole plantations may die and the soil may not be suitable

• Damping-off

  later the plants wilt irreversibly. In potted plants the flower buds fall off. The side roots rot and very little of the root system survives. On the border [...] and soil or substrate the plant turns brown. A typical symptom of a Pythium infection is the easy stripping of the skin from the root cortex with a finger [...] enable the spores to move through water. The zoospores are chemically drawn to the growing roots of young plants and move towards them through the soil water

• Limonica strong contender against persistent thrips

  September 15, 2025

  establish early and exert pressure on thrips populations before they peak. The potential of Limonica against other thrips Although most data currently focuses [...] above that range. That said, it’s important to keep in mind that the hatching rate of Limonica eggs is low in hot, dry conditions or when humidity drops [...] biocontrol agents like, in case of sweet pepper, Orius laevigatus. As new thrips species continue to challenge growers worldwide, the need for effective and s

• Bacterial wilt, brown rot

  show signs of wilting during the day which may disappear in the early stages of infection. Under conditions favourable for the bacteria, the whole plant [...] s roots on the stem. The vascular stem tissue is coloured brown and when the stem is cut, bacterial slime oozes from the wound. This is the way to distinguish [...] colonises the xylem, causing bacterial wilt and brown rot in a very wide range of potential host plants. Damage symptoms In potato, field symptoms of Ralstonia

• Box Tree Moth No More: Buxatrap and Capsanem

  June 13, 2024

  severe defoliation which can lead to the death of the tree. Sadly, in the past few years, it has left a trail of destruction through forests, parks, tree [...] The Box Tree Moth ( Cydalima perspectalis ) is an oligophagous species (eating only specific kinds of food). Sadly, this food is the leaves of Box Wood [...] important to detect the early signs of an attack in spring. The first step is to use box tree moth traps ( Buxatrap ) containing the specific sex pheromone

• Early blight

  occur at the side of the stem. Life cycle and appearance of Early blight From the primary infection of leaves, Alternaria solani can spread to the flowers [...] spores surviving in the soil are the main source of infection. Especially wheat and barley reduce the number of surviving conidia in the soil. Use resistant [...] humidity (RH) of over 90% or when the leaves are wet. Small differences in optimum temperature occur between species, but in general the risk of Alternaria

• Grey mould

  cinerea ) is part of the foot rot complex, which causes rotting of the foot and may cause death of the plants. In cucumber and tomato the fungus causes lesions [...] lesions on pruning wounds. These lesions may encircle the stem, so the part of the plant above the lesion wilts and dies. In vegetables and strawberry, [...] that it excretes compounds that kill the plant cells and then uses the content of the plant cells as nutrients. On the infected area, new spores are formed

• Understanding Orius

  July 12, 2024

  to establish, it is best not to apply Thripor from the end of September to the end of March of the following year (between wk 39 and wk 12). However, they [...] works fine). Mark the introduction point(s) within the crop and/or on the scouting maps, along with date of application. Check the marked areas starting [...] Thripor will have a harder time establishing because of the amount of trichomes that can be found on the cannabis plant. Leaf hair density has also been researched

• Crazy roots, hairy roots, crown gall

  caused by a change in the hormonal system of the plant resulting from the Rhizobium infection. Rhizobium rhizogenes puts a Ri-plasmid in the plant tissue and [...] primary source of infection by Rhizobium rhizogenes has not yet been defined. The assumption is that the bacteria survive in the soil, but it is possible [...] including disinfection of tools, drippers, gutters etc. Adjust the work order in greenhouses to fit with the hygiene protocol Disinfect the nutrient solution

• Phytophthora blight

  from the root to the foot, but direct infection of the foot also occurs. Exudates leaking from growing root tips promote germination and attract the zoospores [...] fungal growth on the leaves. The centre is grey-brown with a light-green edge. On the stem, elongated brown lesions occur, usually circling the stem. On potato [...] through the skin. The Great Famine was a period of mass starvation caused by this disease which ravaged potato crops throughout Europe during the 1840s.