gerbera and worldwide distribution. Damage symptoms Direct damage, caused by sucking of sap is rarely seen. Sometimes, large populations build up on potatoes [...] adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with unfertilized viviparous females continuing to produce
Overview The corn earworm is a major pest affecting over 100 crops, of which the most prominent varieties are corn, sorghum, cotton, aubergine, pepper, and tomato. They primarily feed on flowers and f
damage to plants both directly and indirectly. The most direct damage is caused by the larvae mining the leaf tissue, leading to desiccation, premature leaf-fall [...] harvest is affected. The older larvae make wider tunnels. Feeding spots made by adult females can also reduce yield, although except with ornamental crops [...] plants can be completely destroyed as a result of the direct damage caused by leaf miners. Indirect damage arises when disease causing fungi or bacteria
Overview They belong to the Curculionidae family, which is made up of more than 40,000 species. They have very hard bodies and are small in size. They prefer crops from the Solanaceae family, especial
considered a quarantine pest. Damage symptoms The main direct damage, caused by potato psyllid nymphs when feeding, is known as ‘psyllid yellows’, which results [...] fruit. The bacterium Candidatus Liberibacter solanacearum which is transmitted by potato psyllid amplifies the feeding damage and causes ‘zebra chip’ in potatoes
even very low numbers of thrips can cause damage by transmitting viruses, or by reducing aesthetic value by damaging flowers, e.g. in roses The western flower [...] in other sheltered places. The prepupal and pupal instars can be recognized by their developing wing buds. Compared to the prepupa, the pupa has longer, [...] of wings are fully developed. Damage symptoms Thrips cause damage to plants by piercing the cells of the surface tissues and sucking out their contents,
measures you can take to prevent or reduce any allergic reactions caused by the type of products mentioned above. Which products are of concern? This [...] the predatory mites , feeder mites, and supplementary feeding products sold by Koppert. Icons on the product packaging show you the precautionary measures [...] and legs (e.g. a disposable overall). We also advise you to cover your hands by wearing gloves. Application device If you use an application device, avoid
cotyledons remain green. During humid spells the surviving plants exhibit by necrotic leaf spots Life cycle and appearance of Root rot of carrots The fungus [...] harvesting always causes some damage to carrot roots, which can be infected by Rhexocercosporidium carotae . Pre-storage treatments to harden the periderm [...] Calcium content: Higher calcium content of the roots reduces disease severity by strengthening cell walls and aiding in early signal transduction in host-pathogen
