• Fall Armyworm

  symptoms The developing larvae eat different parts of the host plant, depending on the crop, the stage of crop development, and the age of the larvae. On [...] lay up to 2000 eggs in a lifetime. Eggs are white, pinkish or light green and spherical, and are usually laid on the underside of the leaves. The larvae [...] distinct white inverted Y-shaped mark on the front of the head and four large spots on the upper surface of the last segment. Pupae are reddish brown and

• Click beetles

  and feed on the roots of many plants. Damage symptoms The click beetles feed on the roots and bore into the base of plants. This can cause the plants to [...] fully grown the larvae pupate in the soil in summer. The adults appear about 4 weeks after pupation, but usually remain in the soil until the following spring [...] to black. The eggs are laid in May or June in groups in the soil. They hatch about one month later and the larvae start to feed on roots. The larvae (‘

• Leaf stripe

  during the cropping season. The fungus is seed-borne and this systemic infection is the only source of primary infection. The fungus spreads from the seed [...] first occur on the first, second and third leaf and subsequently on other leaves. Yellow stripes are formed at the base of the leaf and the leaf sheath. [...] and chlorotic and may merge. Eventually this leads to the death of the leaf. The leaf splits at the end which makes it look shredded. This is typical for

• Gummy stem blight

  brown lesions on the foot and higher up on the stem. On the lesions, golden-brown gummy drops occur, hence the name gummy stem blight. On the lesions, black [...] be recognized from the outside by the small narrowing of the tip of the mature fruits. The symptoms on stems, leaves and inside the fruits may occur together [...] wounds, hydathodes (the end of leaf veins) or the hair bases. Stems are infected through wounds and by the infected leaves through the petioles. Fruits are

• Rose aphid

  presence in the crop. Wingless females of the rose aphid are 1.7-3.6 mm long and green or deep pink to red-brown. The antennae and sometimes the head is dark [...] dark in colour. The siphunculi are black and bent outwards. The rose aphid usually overwinters on rose bushes in the egg stage, although in mild winter [...] aphids can build up on roses in spring and summer; sometimes shoots are completely covered by aphids. In summer, winged aphids spread the infestation to

• Pink Bollworm

  General The pink bollworm is important pest in cotton cultivation. The pink bollworm is native to South Asian countries and has spread to all cotton growing [...] infestation. Entry hole is plugged with excreta of the insect which are feeding inside the boll. Reduction of lint development, discolouration, and destruction [...] cycle and appearance Pink bollworm lays eggs all over the cotton plant, preferably on or near the buds and flowers. Each female lay egg about 200-400 in

• Charcoal rot

  Cutting the roots may show the same discolouration of the internal tissues of the main roots. In most crops, necrotic lesions on the roots are the first [...] survival of up to 1.5 years has been reported. The density of the microsclerotia in the soil is directly related to disease incidence. Within 24 hours the fungus [...] fungus infects the roots of the host by direct penetration via germ tubes. During the next two days, necrotic spots occur on the roots and the fungus spreads

• Spidex Vital

  shake the bottle gently before use Push the centre of the cap to open the dosage hole Sprinkle material on leaves or pour into Diboxes Make sure the material [...] Natutec Airobug Dosage The dosage of Spidex Vital depends on climate, crop and spider mite density and should always be adjusted to the particular situation [...] 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

• Codling moth

  invading the fruit, the larvae first form a small cavity just under the skin. The entry hole can be seen and is usually plugged by dry frass. The larva then [...] days. The first instar larvae burrow into the fruitlets, often through the calyx. Larger fruits are usually entered through the side or near the stalk [...] burrows towards the core and eats a large proportion of the flesh, leaving behind brown frass. The entry point is then greatly enlarged as the tissue beneath

• Oleander aphid

  rather than eggs and that the progeny are clones of the adult female. The nymphs feed in colonies on the shoots at the top of the plant. Nymphs progress through [...] region, the origin of its principal host plant, oleander. Damage symptoms The colonies of bright yellow aphids can easily be seen on the shoots of the host [...] host plants. The damage caused by the aphid colonies is mainly aesthetic due to the large amounts of sticky honeydew produced and the resulting black sooty