• Pollination checklist tomato

  crop and the presence of sufficient healthy flowers form the basis for good pollination. Various factors can disturb the health of the plant and thus also [...] humidity (RH) of between 50% and 80%. A relative humidity of more than 80%-85% will result in pollen not being released and the bumblebees will become inactive [...] visible both to the bumblebees and to people Ensure the hive is horizontal Protect the hive against condensation and rainwater Not all chemical agents can be

• Orius laevigatus

  strategies in various agricultural and horticultural systems. Both adults and nymphs of Orius laevigatus are voracious predators, adept at piercing and feeding [...] Koppert products for advice on the best strategy for your situation. Orius laevigatus products Thripor-L Expand all items Best conditions for use of Orius laevigatus [...] laevigatus is used for the control of the following pests: Thrips The natural enemy Orius laevigatus is available at Koppert as Thripor-L . How to use Orius

• Neoseiulus californicus

  same as for other members of the Phytoseiidae family: egg, larva, proto- and deutonymph, and adult males and females. Adult mites are lighter and have a [...] food supply has been absent for some time, they become thinner and a uniformly light transparent colour. Best conditions for use of Neoseiulus californicus [...] effectively over the longer term. Neoseiulus californicus for pest control Neoseiulus californicus is used for the control of the following pests: Spider mites

• Pomegranate wilt complex

  drooping and drying of leaves and branches. The entire tree dies in few months. Dark greyish brown to black colouration of wood below bark and vascular [...] discoloured bands in the stem and roots. Disease cycle The fungus survives for more than 7 years in infected plant debris and soil. The pathogen spreads through [...] insects, farm machinery and intercultural operations. Management Mix Veni GoKlean at the rate 2 to 3 ml per litre of water and drench 20 to 25 litre of

• Pomegranate bacterial blight

  Relative humidity above 50% and temperature between 25 - 30 0 C, over-use of nitrogen fertilizer, micronutrient deficiency and reduced plant health leads to [...] defoliation. The pathogen also infects branches and stem as water soaked necrotic spots causing girdling and cracking symptoms. Necrotic water-soaked spots [...] infection. Disease cycle Infected cuttings are the main source of inoculum and wind splashed rains plays important role is spread of the disease. Intermittent

• Cercospora leaf spot

  the spread of the disease and severity. The fungus has the ability to overwinter in plant debris and remains in the field for long time. Management Spray [...] circular with small to large grey centres and dark brown margins. The spots may enlarge to 1 cm to more and later coalesce. The spots dry up results in [...] leaves. Severely infected leaves drop off prematurely results in reduced yield. Stem, petiole and pods are also infected with Cercospora with typical grey centres

• Grapevine powdery mildew

  flowers, and grape clusters, causing yield losses, reduced fruit quality, and increased risk of bunch rot. Powdery mildew thrives under warm and humid c [...] Leaf curling, distortion, and brittleness as infection progresses Reduced photosynthetic activity and weakened vine vigor Shoot and tendril symptoms White [...] patches on young shoots and tendrils Reduced shoot elongation and poor lignification Increased susceptibility to mechanical damage and stress Weakened shoot

• Southern blight

  important plant pathogen that inhabits the soil, and is responsible for root and stem rot, wilting and damping-off of seedlings. It has a wide range of [...] favourable conditions for the development of the pathogen are temperatures between 25 and 30 ºC, relative humidity of over 90%, and a soil pH of under 7 [...] 7. The ideal pH range for germination is between 2.6 and 4.4, but it can occur between 2.6 and 7.7. Very humid soils favour development of the fungus. In

• Verticillium wilt

  Verticillium can also be seed-borne and tuber-borne. The optimum temperature for Verticillium albo-atrum is 21 °C and growth stops above 30 °C, whereas [...] erticillium albo-atrum and Verticillium dahlia e are the most important plant pathogens. Verticillium dahlia causes verticillium wilt and early dying of potato [...] or with only partial wilting. Life cycle and appearance of Verticillium wilt Verticillium dahliae survives for prolonged time periods (many years) in the

• Fusarium head blight or scab

  , 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, for example [...] between 4 and 35 °C, with an optimum between 25 and 28 °C. Germination only occurs at relative humidity (RH) above 80%. Warm (25-30 °C) and humid (RH above [...] different species. Fusarium is widespread and can infect a range of host crops. Many species are considered weak pathogens and can only infect wounded or stressed