• Phytophthora blight

  optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as oospores (sexual overwintering [...] and white fluffy fungal growth on the leaves. The centre is grey-brown with a light-green edge. On the stem, elongated brown lesions occur, usually circling [...] blueish lesions appear, that can be seen through the skin. The Great Famine was a period of mass starvation caused by this disease which ravaged potato crops

• Vidi Fortum

  from 3-5 litres/ha Applications should be repeated a number of times Consult a Koppert advisor or a recognised distributor of Koppert products for advice [...] Venturi system Avoid drainage in substrates when applying by drench/drip to prevent leaching Make sure Vidi Fortum does not remain in the irrigation system overnight [...] package has been opened. Storage temperature 5-20°C/41-68°F. Storage conditions In a cool dark place Avoid direct sunlight Protect against freezing

• Entomite-M

  first pests are detected in the crop. Introduction rates typically range from 100-500 per m 2 /release. Consult a Koppert advisor or a recognised distributor [...] insects. The mites appear in and on the soil and at the base of plant stems. The reduction of the infestation level occurs at a slow but steady rate. Pack [...] conditions For optimal results the medium has to be moist, rich in organic matter and have a loose structure. The minimum temperature for successful use of

• Spidex

  Releases should be repeated once or twice at weekly intervals. Consult a Koppert advisor or a recognised distributor of Koppert products for advice on the best [...] Diboxes Make sure the material remains on the introduction site for at least a few hours after introduction Can also be applied with Natutec Airobreez , Natutec [...] situation. Start introduction as soon as the first pest mites are detected in the crop. Introduction rates typically range from 2-50 per m2/release. Releases

• Apple scab

  unripe fruiting bodies in infected fallen leaves or in lesions on twigs. These unripe fruiting bodies, or pseudothecia ripen in winter and form ascospores [...] parts and spore production. In autumn, the fungus produces new pseudothecia in leaves that have already fallen off the trees. In response to the infection [...] results in small dark lesions which may not be noticed before harvest. Life cycle and appearance of Apple scab Venturia inaequalis overwinters in the form

• Pine processionary moth

  The caterpillars move in a file searching for a suitable site to tunnel underground and pupate in the soil. Pupation takes place at a depth of about 10 cm [...] Pupation takes place in the soil in an oval, ochreous-white silken cocoon. The pupae are about 20 mm in length, oval, and of a pale brownish-yellow colour [...] hindwings are white, grey-fringed, with a characteristic dark spot in the anal region. The cylindrical egg masses range in length from 4 to 5 cm. They are covered

• Cabbage moth

  forewings, with a kidney-shaped white-rimmed marking in the middle. The hindwings are light brown with a rather inconspicuous spot in the middle. Head [...] becoming steadily darker until they are a brown-black or sometimes even a purple colour. They are ridged and have a light network of markings. First instar [...] youngest a transparent yellow to grey-green with a characteristic brown-black head capsule. After the third moult, the caterpillar is green with a dark back

• Yellow rose aphid

  Yellow rose aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction [...] roses and strawberries, in glasshouses in northern Europe or outdoors in warmer climates. Wingless yellow rose aphids have a brownish head; the body is [...] white skin, betraying their presence in the crop. The yellow rose aphid is holocyclic in North America (i.e. they mate in autumn and produce eggs to overwinter)

• Potato aphid

  betraying their presence in the crop. The adult potato aphid is a large, slender aphid with long, green cornicles, long legs, and a long cauda. Adults are [...] but is these days distributed throughout the world. It is a highly polyphagous species with a preference for Solanaceae (particularly potato), but has also [...] growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough in the season, the death

• Tomato leaf miner

  occurs in greenhouses. The tomato leaf miner has been found in greenhouses for decades, but has become a common pest since the 1960’s, particularly in sweet [...] crop damage in many parts of the world, including North Africa, Europe and northern Asia. In warmer regions, the insect is found outdoors but in temperate [...] cosmetic damage. In (sub-)tropical areas this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In full-grown plants