Leek moth

moth is present throughout Europe. It is also found in some Asian countries and has been introduced to parts of Canada. The larvae of Acrolepiopsis assectella [...] withering of the plant can occur. On old leaves, open galleries can be seen which decrease the economic value of the plant. Severe damage also occurs on i [...] where serious seed loss can occur. On leeks, larvae mine the central leaves which have long, longitudinal grooves when growing. On onion leaves, the larvae

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

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

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

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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

Pierce's disease of grapevine

fastidiosa is a gram-negative bacterium which is limited to xylem tissue. It has many hosts, many of which show minor or no symptoms. More and more plant species [...] conditions with frost periods in which the bacteria inside the dormant plants die. Also, in many regions there is no overwintering of adult vectors that [...] susceptible cultivars (within 2-3 years) than in more tolerant cultivars, which may survive more than five years. Stone fruit (peaches and plums): In peach

Vidi Parva

the production of auxins. These auxins boost the formation of cytokinins which in turn induce the formation of fine roots and root hairs and promote the [...] with more branches and root hairs. Pack size 1, 5 and 20 litre containers (country specific). Presentation Liquid, brown, slight herbal scent. Content 1% [...] receipt See package for expiry date Storage time will decrease once package has been opened Storage temperature 5-20°C/41-68°F. Storage conditions In a cool

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

Broad mite

greenhouses in temperate regions. The broad mite (Polyphagotarsonemus latus) has a wide range of host plants, especially peppers, but also aubergine, tomato [...] Leaf feeding is mainly concentrated on the underside near the leaf stalk, which tends to cause the leaf to turn brown and curl up. A typical indication of [...] of a more serious infestation, this network becomes so dense that there is no more green tissue visible. In most cases, the main veins are untouched, causing