Powdery mildew

mildew fungi are not very resistant to water so rain often limits the epidemics and spore dispersal by rain is negligible, since spores explode when in contact

Crazy roots, hairy roots, crown gall

formed which break open, releasing many bacteria. These are dispersed by rain and wind and by humans and tools. Until now, no bacteria have been isolated

Early blight

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

Black rot of carrots

stomata. Spores are dispersed by wind and in some species through the splash of rain. How to prevent Black rot of carrots Remove crop residues, weeds and volunteer

Trial_and_Field_results_nematodes_in_fruit_orchards_EN_-_Koppert.pdf

if the ground is already wet. He waits until it rains. ‘I then apply the solutions right after it rains so that the nematodes can enter the soil. In the

Phytophthora blight

above-ground plant parts, leaf wetness is required. Dispersal is by wind and rain causes the pathogen to be returned to the soil from infected plants. Dispersal

May beetle

the soil until the temperature is high enough to emerge. Finally, when the rains arrive, the adults are encouraged to emerge in order to copulate and consequently

Quad

allows the bumblebees to calm down Protect the hives from direct sunlight and rain, and weigh down the hive for example with a stone, to prevent it from blowing

Grey mould

grey mould ( Botryotinia fuckeliana / Botrytis cinerea ) need moisture (dew, rain, irrigation water) and nutrients for germination. Germination also happens

Bacterial canker of tomato

greenhouse crops and by water in field crops, for example through splashes of rain or irrigation. Both in greenhouses and in the field, spraying may also spread