• Thripex-Plus

  in the crop, not exposed to direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging the predatory [...] various thrips species. Crops Do not use in tomato. Mode of action Predatory mites multiply in the sachet and disperse into the crop over a period of several [...] ly or as soon as the first pest mites are detected in the crop. Use at least 4,000 sachets per ha and hang them evenly spaced in the crop. Release should

• Pierce's disease of grapevine

  along the margin or the tip from early to midsummer. The necrotic area spreads over the leaf from the margin and is marked by a chlorotic band. In the beginning [...] plums): In peach, the canopy of infected plants is compact and umbrella-like due to the shorter internodes. The foliage is denser and the leaves are a darker [...] substance, in the vessels. The bacteria, gum and tyloses block the vessels, causing the plants to wilt. Transport to different plant parts depends on the plant

• Expanded board to strengthen development at Koppert Biological Systems

  April 19, 2018

  EN RODENRIJS, THE NETHERLANDS – Koppert Biological Systems has increased the size of its board in response to the projected growth of the Dutch family company [...] are now taking place on the Advisory Board. Ready for the future ‘Our rapid growth and the need for specific divisions like Horti, Agri and live stock [...] Ruiter will take up the position of Director Horti. The new roles are much more specific in nature and, together, cover all areas in which the company operates

• Damping-off

  bulbs. At first, the plants recover during the night, but later the plants wilt irreversibly. In potted plants the flower buds fall off. The side roots rot [...] of the root system survives. On the border between air and soil or substrate the plant turns brown. A typical symptom of a Pythium infection is the easy [...] enable the spores to move through water. The zoospores are chemically drawn to the growing roots of young plants and move towards them through the soil water

• Biological seed treatment

  beneficial effects on the growth, resilience of the plant, abiotic stress, the development of the root system, and the productivity of the crop. An overview [...] stress; The plant growth promoting microorganisms colonize the roots and protect the crop during the entire growing season. Seed treatment increases the av [...] even layer covers the whole seed. In this way, the beneficial ingredients are available to the seed when it requires them. What are the benefits of biological

• Chrysopa

  difficult to find. Chrysoperla carnea is active mainly during the night. The larvae hide during the day. Pack size 1,000; 10,000 larvae. Presentation 500 ml [...] Pests Aphids and other pests, like mealybugs , Echinothrips and eggs of pest lepidoptera species . Mode of action Larvae of the lacewing attack their prey [...] Application Shake the bottle or bucket gently before use Apply on infested leaves For hotspot treatments, apply Chrysopa directly in the heavily affected

• Wheat bunt

  sporidia infect the wheat seedlings even before emergence and the fungi grow inside the plants to the growing tip. The fungi grow between the plant cells and [...] heads. The glumes are opened either on some or on all spikelets, showing the bunt (smut spore) they contain, which is larger than a normal kernel. The bunt [...] sporidium. Two mating types are distinguished. The filiform basidiospores fuse in the middle with a basidiospore of the other mating type so that H-shaped structures

• Broad mite

  to the damage caused by viruses. The typical pattern of damage consists of malformation and distortion of the above-ground growth of the plant. The mites [...] plant tissue, like the growing tips, young leaves and flower buds. The mechanism causing the deformation is not yet fully understood, possibly the mites, whilst [...] lay their eggs mainly on the underside of the leaf or on the fruit surface. The elongated, oval eggs are firmly attached to the surface and are rather large

• Black root rot of cucurbits

  at 10 °C the lesions are light-brown. The lesions can be enclosed by pseudostromata: dark coloured tissue that looks like black stripes. The disease is [...] a few of the roots but in severe cases all roots may be infected. At the final stage of the disease, only vascular tissue remains because the cortex (outer [...] cucumber roots. The lesions are slightly sunken and are mostly formed around the point of attachment of lateral roots and root hairs. The lesions may grow

• European red mite

  generations in one year. The European red mite overwinters in the egg stage; the “winter eggs” are laid in the wooden parts of the host plants in autumn. [...] appearance of European red mite The European red mite feeds mainly on the undersides of leaves but moves to upper leaf surfaces when the lower side becomes crowded [...] base of the hairs; males are about 0.3 mm long, yellowish red, and more slender and tapered near the hind end. The development from egg to adult goes faster