Crazy roots, hairy roots, crown gall

galls on the stems, which are first white and later turn brown. Only Rhizobium radiobacter causes galls and tumours on underground plant parts and on the [...] growth (crazy roots). In greenhouse vegetables, the roots overgrow the substrate and in severe epidemics the drippers get clogged. In tomato, excessive vegetative [...] caused by a change in the hormonal system of the plant resulting from the Rhizobium infection. Rhizobium rhizogenes puts a Ri-plasmid in the plant tissue

Chrysopa

product can be applied on the rock wool slabs, on leaves, via Dibox application boxes or distributed by Natutec Airobreez , Natutec Airbug or Natutec Airobug [...] Application Shake the bottle or bucket gently before use Apply on infested leaves For hotspot treatments, apply Chrysopa directly in the heavily affected areas [...] first pests are detected in the crop. Introduction rates typically range from 2-20 per m 2 /release. Releases should be made in infested areas only and

Mealybugs and scales

mealybugs and soft scales also produce honeydew (on which moulds grow) resulting in considerable damage in ornamental and fruit crops and loss of value. Armoured [...] inflict damage on the crop in various ways: nymphs and females extract the sap from the plant, stunting growth and causing deformation and/or yellowing of [...] fruit are concerned, these often drop off; plant sap is low in proteins and rich in sugars. In order to gain an adequate intake of protein, mealybugs must

Feltiella acarisuga

acarisuga is available in plastic cups ( Spidend ). Make a hole in the lid and place the cup on the rock wool slab or directly on the soil Protect against [...] highly effective in the biological control of spider mites . This beneficial insect, native to Europe, preys on various spider mite species, in particular the [...] weekly intervals, or until the pest is controlled. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy

Chrysoperla carnea

and usually laid individually or in small clusters on plant foliage or near prey habitats. They are pale green or white in color and are attached to the [...] Green lacewings target on aphids , caterpillars , thrips , mealybugs , and other soft-bodied insects that are harmful to plants. In agriculture, Chrysoperla [...] sheltering under the plant or the rim of the pot, during daylight hours. The larvae grasp their prey from below and lift them in their jaws. The prey is injected

Dwarf bunt

teliospores in the soil or on seed. The soil-borne teliospores are the main source of primary infection. The soil-borne teliospores may survive in soil without [...] remain green longer than healthy heads. The glumes are opened either on some or on all spikelets, showing the bunt (smut spore) they contain, which is larger [...] basidiospores fuse in the middle with a basidiospore of the other mating type so that H-shaped structures are formed. These can germinate directly or form secondary

Pea and Bean Weevil Trap

margin or headland of a field that was planted with peas or beans in the previous year Place the trap on the ground Ensure the trap is securely positioned [...] dispenser in the transparent top Fix the transparent top with a twist action lining up the slots Application Place traps 10 meters apart on a grass margin [...] positioned on the ground to prevent it from tipping over Check the traps three times per week When more than 30 weevils per trap are counted on any occasion crops

Rhyzobug

detected in the crop. Releases should be repeated once or twice. Consult a Koppert advisor or a recognised distributor of Koppert products for advice on the [...] action Adults and larvae feed on all stages of armoured scale insects. Visual effect Small scales are consumed entirely. In larger scales feeding damage [...] irregular holes in the scale cover. Pack size 500 adults. Presentation 90 ml cardboard tube. Carrier Buckwheat hulls. Application Apply Rhyzobug in the evening

Macrocheles robustulus

available in a cylinder ( Macro-Mite ). Turn and shake the cardboard cylinder gently before use Spread material evenly on soil or planting medium (not on the [...] nematodes and other soil living pests, which can be found in high numbers in greenhouses in soil which has been enriched with compost. As natural enemies [...] The predatory mites feed on larvae of sciarid flies , thrips pupae and other soil-dwelling insects. The mites appear in and on the soil and at the base

Cabbage moth

caterpillar varies in colour from green or brown to black. In younger instars, the relatively large head capsule is conspicuous. In older instars, the [...] found in Europe, North Africa (Libya, Canary Islands), Japan and sub-tropical Asia, including India. Damage symptoms Large caterpillars feed mainly on the [...] skeletonized leaves, holes and frass on leaves. The caterpillars destroy large numbers of leaves and their frass accumulates in the heart of cabbage, thereby