Leaf stripe

yield losses. Damage symptoms Symptoms first occur on the first, second and third leaf and subsequently on other leaves. Yellow stripes are formed at the base [...] this leads to the death of the leaf. The leaf splits at the end which makes it look shredded. This is typical for this disease. Infected plants may be stunted [...] The fungus spreads from the seed into the seedling. Conidia are produced on the infected leaves when humidity is high and wind-dispersed to neighbouring

Long-tailed mealybug

about six weeks to complete and in the winter about 12 weeks. Damage symptoms Mealybugs inflict damage on the crop in various ways: Nymphs and females [...] yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order to gain an adequate intake of protein, mealybugs must [...] General Pseudococcus longispinus occurs naturally in tropical and sub-tropical regions, but these days it is widespread throughout the world. The range of

Loose smut of wheat

growing tip and the seed primordia. It only becomes visible after head emergence. The teliospores that are formed on systemically infected seeds then infect [...] Ustilago nuda f.sp. tritici is a basidiomyceteous fungus that affects wheat. It is also known as loose wheat smut, or loose smut of wheat. Damage symptoms [...] during flowering and the infected seeds are the primary source of inoculum in the next crop. The fungus survives inside the seed and when the seed germinates

Spidex Vital Trial Results

The trial was conducted on 1-metre tall cucumber plants. 2 rows of 6 plants each, placed in a walk-in cage. The last 2 plants in each row were infested [...] Your vital partner in spider mite control www.koppert.com Spidex Vital predatory mites are born to fight your spider mites. It gives you the best control [...] distance. A more diverse population composition is present in a bottle of Spidex Vital, so when applied in hotspots, the adults are followed up by the growing

Gooseberry

sparsely habituated in various location in North America. The rambling gooseberry bush grows up to 1,5 metres (5 feet) high and wide and its fruit, the berries [...] kinds, but do have a nice flavour. Nowadays, gooseberries are produced both on a commercial and domestic scale.

Codling moth

spring. Larvae still in the apples at harvest can often be found in cracks in apple boxes or other places in the store. [...] apple and also occasionally of pear, quince, peach and other fruits. It is very common in Europe. Damage symptoms After invading the fruit, the larvae first [...] hook-tipped bristles at the tip. In Europe, the first generation adults appear from mid May onwards. Eggs are laid singly on leaves or developing fruitlets

Mirical-N

and buckwheat hulls. Application Sprinkle material directly in the hotspots on leaves or in Diboxes Spread material thinly (maximum 1 cm thick) to enable [...] actively search for their prey and suck them out. The skin is left behind in its original form. Pack size 500 nymphs. Presentation 100 ml bottle. Carrier [...] least a few hours after application Dosage The dosage of Mirical-N depends on climate, crop and pest density and should always be adjusted to the particular

Mottled arum aphid

cosmopolitan distribution and a wide host range. In temperate climates it is primarily a pest in greenhouses where it attacks many ornamentals , including chr [...] areas of mould covering the leaves can reduce photosynthesis and also result in an unattractive plant with a much lower market value. Neomyzus circumflexus [...] adulthood. With each moult they shed white skin, betraying their presence in the crop. Reproduction of the mottled arum aphid is entirely by parthenogenesis

Southern European marshland pyralid

Caterpillars are found in webs, preferably in damp, humid places and are thus mainly found low in the crop, often in decaying organic material on the ground or [...] but can sometimes be seen in the daytime. Eggs are laid singly or in groups of 5 to 10 eggs, overlapping in a tile-like fashion on both the upper and lower [...] caterpillars pupate in an earthen cocoon, concealed either within the crop or in another suitable spot in the vicinity. Pupation occurs in a cocoon made of

Praon volucre

Praon volucre is one of the most abundant parasitoids of many aphid species in Europe. Praon volucre is used for the control of the following pests: Potato [...] Macrosiphum euphorbiae ) The parasitic wasp Praon volucre is available at Koppert in Aphiscout . Aphiscout consists of Aphidius colemani , Aphidius ervi , Aphelinus [...] items How to use Praon volucre The parasitic wasp Praon volucre is available in a bottle ( Aphiscout ) Peel off the outer layer of the label starting at the