• Bacterial canker of tomato

  On the infected field no potatoes or other Solaneceaous crops can be planted for five years. On other fields on the same farm, no seed potatoes can be grown [...] General Clavibacter is a quarantine organism in Europe, which means that strong efforts are used to prevent the bacterium from entering. When the occasional [...] buffer zone. Replanting can only take place after thorough disinfection has been proven to the authorities. Potato growers lose their entire crop of the

• Potato/tomato psyllid

  Overview It is a pest of huge economic importance, which initially affected potatoes and in recent years has become a problem for other Solanaceae crops such [...] caused by potato psyllid nymphs when feeding, is known as ‘psyllid yellows’, which results in delayed growth, weakness in the new leaves, chlorosis/reddening [...] and poor-quality fruit. The bacterium Candidatus Liberibacter solanacearum which is transmitted by potato psyllid amplifies the feeding damage and causes

• Privacy Statement

  each visitor, as well as a timeline that shows which pages the visitor has viewed and what the visitor has done on the page. By collecting this information [...] where such third parties process the information on Google’s behalf. Koppert has no influence on this. Profiling We use specialist external software to create [...] status/HTTP status code Volume of data transmitted Website where the request has come from Browser, language settings, browser version, and operating system

• How to protect bumblebees from heat

  environmental conditions in which bumblebees need to operate in various countries worldwide conducted over a period of 35 years, has led to a number of innovations [...] that you still achieve the desired pollination . By using Natupol Excel , which contains more bumblebees compared to our Natupol hive, you ensure the efficient

• Crazy roots, hairy roots, crown gall

  galls are 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 [...] excessive root growth. All four species cause the growth of galls on the stems, which are first white and later turn brown. Only Rhizobium radiobacter causes galls [...] roots, crown gall The primary source of infection by Rhizobium rhizogenes has not yet been defined. The assumption is that the bacteria survive in the soil

• Mottled arum aphid

  General The mottled arum aphid, Neomyzus circumflexus , has a cosmopolitan distribution and a wide host range. In temperate climates it is primarily a [...] aphids can damage plants because they produce large amounts of honeydew, which provides an excellent substrate for the growth of black sooty mould. Large [...] viviparous females continuously producing new generations of females. There is no sexual stage in the life cycle. Wingless females of the mottled arum aphid

• Grower Koen - Embracing biological crop protection in agriculture

  the close collaboration with Koppert, which is crucial especially when you start using bio-control solutions. It has helped him deploy organic methods e [...] protection when the government decides that certain traditional methods can no longer be applied. "10 years ago, organic farming was miles ahead in terms [...] friendliness, but that gap is getting smaller. In 15 years, I expect there will be no difference at all, especially due to the rapid increase in effective organic

• Aphidius colemani

  parasitic wasp Aphidius colemani Aphidius colemani has a very effective searching behaviour, which enables the wasps to track down and parasitize aphids [...] by the presence of the parasitic wasp also has an effect: the alarmed aphids secrete a warning substance, which affects the entire population, often causing [...] if an aphid is parasitized in a younger stage there will be no reproduction. A male wasp has slightly longer antennae, a rounded abdomen that is shorter

• Trichoderma harzianum

  grows faster on the surface of the root than soil borne pathogenic fungi, which get no change to establish themselves on the roots. Competition for nutrients: [...] (ISR). Absorption of fixed and non-fixed nutrients: Trichoderma harzianum has the capacity to make certain 'fixed' nutrients such as manganese and iron [...] T-22 in sustainable agriculture and integrated pest management practices has various advantages: It controls different soil-borne diseases It strengthens

• Understanding Orius

  July 12, 2024

  Are you tired of battling pesky thrips in your grow room or greenhouse? Look no further than Thripor (Orius insidiosus), the perfect solution for your growing [...] systems (IPM)! Thripor (Orius insidiosus) is a common predatory bug that has been widely used in IPM-programs in North America for over 20 years, especially [...] playing a key role in the management of common thrips species. Over time, it has become more popular, as it provides an effective, environmentally friendly