• Shallot aphid

  stunted when growth starts in spring. Petioles are shortened and leaves curled and twisted. Blossom trusses are also affected, fruits remain small and yield [...] Wingless females of the shallot aphid are 1.1-2.2 mm long and shiny brownish green to dirty yellow. Their legs and antennae are pale, apart from the ends of the [...] build up even in winter and early spring when temperatures are still low. Winged forms are produced and migrate to other crops until June.

• Aphidius colemani

  Koppert as Aphipar . Aphidius colemani products Aphipar Expand all items How to use Aphidius colemani The parasitic wasp is available in a bottle ( Aphipar [...] which enables the wasps to track down and parasitize aphids , even when they are at low density. The behaviour of the female during egg-laying is typical of [...] species, and whether it has not been parasitized before. If both criteria are met, then the second phase of parasitization will start. The female stands

• Caterpillars

  yield. Solutions for caterpillar control Learn more about What are caterpillars? Caterpillars are the larvae of butterflies and moths. Butterflies and moths [...] more than 150,000 species, that are easily distinguishable from other insects. Many of the butterfly species that are active during the day can be strikingly [...] strikingly colourful while moth flying at night are usually inconspicuously brownish are greyish. Adult butterflies do not damage crops. Most of them feed

• Glasshouse potato aphid

  appearance. Antennae are marked by a number of darker bands, and their length exceeds that of the body. The legs are also long, there are two distinctive dark [...] glasshouse potato aphid manifests both anholocyclic (no eggs are laid) and holocyclic (winter eggs are produced) lifecycles. There is no alternation of hosts [...] and curled leaf margins. The immediate effects of piercing by the aphids are visible in lower leaves in the form of yellow patches. Heavy yellowing may

• Sciarid flies

  . Lycoriella species are mainly found in commercial mushroom cultivation where they can cause enormous damage. Sciarid flies are usually found in damp [...] little, plant death is generally local. Young plants that are kept humid and well-watered are particularly at risk. Life cycle and appearance of Sciarid [...] hardly feed at all during their short life. The males are usually smaller than the females. They are not fast fliers, and prefer damp areas in dark places

• Blueberry aphid

  produce females. The aphids are mainly found on young shoots. Peak aphid densities are reached in June and July. Sexual adults are produced in September and [...] presence in the crop. Wingless females of the blueberry aphid are pale yellow-green. The siphunculi are long and straight. Blueberry aphids overwinter as eggs

• Cerall.. a powerful weapon against Fusarium, Tilletia caries and Septoria nodorum

  July 13, 2021

  seed-borne fungi, such as Fusarium , Tilletia caries and Septoria nodorum are serious threats. These diseases harm the seeds of various crops. New crops [...] product is currently used on over 55400,000 ha of arable land in the EU. How it works Pseudomonas chlororaphis is administered via seed treatment. This [...] wheat, rye and triticale seeds. The product is a seed coating: the seeds are treated prior to sowing. Cerall remains effective for up to one year after

• Rose aphid

  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 in colour. The siphunculi are black and [...] rose aphids retard the growth of buds and new shoots. Foliage and flowers are often disfigured and contaminated with sticky honeydew on which black sooty [...] colonies of aphids can build up on roses in spring and summer; sometimes shoots are completely covered by aphids. In summer, winged aphids spread the infestation

• Crucial information on pollination at high temperatures

  August 10, 2020

  most critical process related to fruit set, yield, and quality, but are you clear on how hot climate conditions impact on both the pollinator and the plant

• Hemp russet mite

  nymphal stages are sometimes also called larva (1st stage) and nymph (2nd stage). The eggs are approximately 0.05 mm in diameter and adults are around 0.2 [...] russet mite All life stages of the hemp russet mite are extremely small and difficult to observe. They are elongated (torpedo-shaped), soft and segmented. [...] stems and petioles of the hemp plant and can cause stunting. When populations are large, the mites can also be found on the underside of leaves. This results