• Phytophthora blight

  leaf wetness is required. Dispersal is by wind and rain causes the pathogen to be returned to the soil from infected plants. Dispersal in the soil happens [...] fungal growth on the leaves. The centre is grey-brown with a light-green edge. On the stem, elongated brown lesions occur, usually circling the stem. On potato [...] higher water content than is optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as oospores

• Black rot of carrots

  General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause [...] or when the leaves are wet. Small differences in optimum temperatures occur between species, but in general, the risk of Alternaria infection is larger [...] crop rotation, in particular when spores surviving in the soil are the main source of infection. Especially wheat and barley reduce the number of surviving

• Early blight

  General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause [...] or when the leaves are wet. Small differences in optimum temperature occur between species, but in general the risk of Alternaria infection is larger under [...] crop rotation, in particular when spores surviving in the soil are the main source of infection. Especially wheat and barley reduce the number of surviving

• Wireless Beehome

  Application Download the manuals of the Wireless Beehome system. Download manual Dosage The range of the transmitter is 100-150 meters. Storage time after [...] construction. The moment of opening and closing the hive entrance can be controlled by a signal from the climate computer or a timer connected to the central [...] after receipt The battery of the Wireless Beehome receiver can last for two seasons if the receivers are switched off after removal from the greenhouse.

• Municipality Doetinchem: Entonem nematodes managing oak processionary caterpillar

  oak trees in the forests and plantations around Doetinchem. Marc van Rijswijk is the spokesman for Buha, the implementing organization for the Municipality [...] ‘We think it is important to maintain the biodiversity in the centre, and public opinion is quite sensitive to spraying here. We worked in consultation [...] breaching the monocultures of the oak and stimulating the natural enemies of the oak processionary caterpillar. As already stated, the use of nematodes is an

• Thripex-Mini

  sachets into the center of the container at time of hanging. Installing in the middle of the plants (shaded) and with the bottom edge of the sachet touching [...] improving the moisture balance in the sachets, such as placing the bottom of the sachet on moist substrate, will have a positive effect on the longevity [...] using Thripex and it is recommended to carry out a small field test to monitor the effects. Best working conditions The predatory mite is not susceptible to

• Potato aphid

  running along the dorsal surface. In green individuals, this stripe is dark green, while in pink specimens it is dark red. This longitudinal stripe is specifically [...] General The potato aphid ( Macrosiphum euphorbiae ) is of North American origin, but is these days distributed throughout the world. It is a highly polyphagous [...] early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield. Plant sap is rich in sugars, but has a low protein content

• Manual Growing lights

  available). In the weeks 10 until 39, you can place the hives lower in the greenhouse, along the walkway under the gutter (according to Koppert’s general placement [...] general advice is to place the hives as high as possible (above the crop) in the greenhouse. Several placement systems can be used for this. It is also important [...] to place the hives high in the greenhouse (above the crop) – especially from week 40 until week 9 (depending on the amount of daylight that is available)

• Natutec Airobreez

  Always charge the battery before use: the battery is fully charged when the light is green Place the battery to connect to the device Clip on the shoulder belt [...] Store the Airobreez and accessories in a dry and dust-free area. The Airobreez can be stored in the supplied case. Always store the batteries in the chargers [...] speed for the determined amount to be released Remove the cap of the reservoir Fill the reservoir with the material to be released and close the reservoir

• Rhyzobug

  Buckwheat hulls. Application Apply Rhyzobug in the evening. Open the cap and tap the beetles directly on the plants. Be aware that adults may not fly away [...] effect Small scales are consumed entirely. In larger scales feeding damage is visible as irregular holes in the scale cover. Pack size 500 adults. Presentation [...] situation. Start introduction as soon as the first armoured scales are detected in the crop. Introduction rates in outdoor crops typically range from 500-3,000