structures, tools and machinery. Primary infection is either seed-borne or takes place as infection of the roots at the root tip or in small wounds,…
although pupae can also be found on leaves, in flowers or in other sheltered places. The prepupal and pupal instars can be recognized by their…
fungus by mycelium growth is limited. Dispersal from plant to plant takes place via water, soil particles, tools, etc. Verticillium can also be…
infection is larger under quite warm and humid conditions. Infection may take place within a few hours, with lesions occurring as rapidly as two to…
lay their eggs into healthy, unripe fruits. The larval development takes place in the fruit. The larvae pupate either fully or partly in the fruit, or…
several hundred eggs. There are six to seven larval stages. Pupation takes place in the ground. Depending on the temperature, the development from egg…
aphids lay eggs that overwinter. In greenhouses reproduction also takes place by parthenogenesis, with unfertilized viviparous females continuing to…
adults and a great variety in colour. In greenhouses reproduction takes place by parthenogenesis, with unfertilized viviparous females continuing to…
infected area, with a substantial buffer zone. Replanting can only take place after thorough disinfection has been proven to the authorities. Potato…
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