• Large raspberry aphid

  January 1, 1970

  eggs of the large raspberry aphid are laid near the base of vegetative canes and hatch in spring. After emerging in spring, the aphids mainly feed on the [...] raspberry aphid, Amphorophora idaei, is the most important aphid species found on raspberries in Europe. It only feeds on raspberry. Damage symptoms Large [...] feeding damage. The major problem is the spreading of various raspberry viruses by the aphids. Life cycle and appearance of Large raspberry aphid Aphids have

• Pollination checklist tomato

  January 1, 1970

  flower and makes the flower vibrate. This is known as buzz pollination. The imprints of the bumblebee's jaw on the flower (bite marks) turn brown within [...] hive once the number of bite marks has dropped to just one or two per flower. Pollen is released best at a relative humidity (RH) of between 50% and 80% [...] also reduce the number of healthy flowers. Potential risks include water shortage, non-balanced nutrition, the influence of viruses, plant diseases, pest

• Predatory mites

  January 1, 1970

  predatory mites needed based on factors such as the size of your crop and the severity of the pest infestation. Distribution: There are various methods to distribute [...] pests, so knowing the target pest is crucial. Scouting is essential to know where the pest is, how severe the infestation is and to identify the pest. Select [...] necessary: Depending on the severity of the pest problem, multiple releases of predatory mites may be required. Follow the recommendations of your crop consultant

• Municipality Venray: biological control of oak processionary caterpillars

  January 1, 1970

  In the Municipality of Venray a third of the tree stock in the area, some 11,000 trees, is oak. ‘We’ve been using Koppert’s nematode product Entonem as [...] coordinator of oak processionary caterpillar management for the Municipality of Venray. ‘We use nematodes at locations in outlying areas where there might be [...] be protected species of butterfly and moth. The major benefit of Entonem is that nematodes kill fewer other caterpillars , which means they are less harmful

• Impatiens thrips

  January 1, 1970

  eggplants. It lives exclusively on the leaves and is often present on weeds in greenhouses. Life cycle and appearance of Impatiens thrips Impatiens thrips [...] undersides of the leaf. Pupation occurs on the leaf rather than on the ground. The prepupae and pupae remain immobile on the leaf tissue. Adults are found [...] found on both upper- and undersides of the leaves. This species of thrips is relatively large. Both males and females are dark brown to black in colour with

• Enhance Your Aphid Control With Hoverfly Allies Rophoria & Syrphidend

  March 13, 2024

  control of aphid pests. Packaging Rophoria is supplied in a cardboard box containing 100 hoverfly pupae of Sphaerophoria rueppellii. Syrphidend is supplied [...] relatively few release points. Their unique ability to locate aphid hotspots based on olfactory cues makes them valuable assets in the ongoing battle against [...] Rophoria Rophoria , the hoverfly Sphaerophoria rueppellii , is able to thrive in a wider range of temperatures compared to its counterpart, Syrphidend . Adapted

• Natutec Drive

  January 1, 1970

  any situation and based on the specifications of the greenhouse. The Natutec Drive module can be used as a customized vehicle or on existing farming equipment [...] for every situation Benefits of Natutec Drive Quality of coverage Accuracy for multiple products and densities Uniformity of distribution, which results [...] product is a unit with a patented release system to disperse material into an airstream for distribution through tubes over crops. The Natutec Drive is applicable

• Pear psylla

  January 1, 1970

  and start to feed on young leaves and flowers. Eggs are deposited in crevices of the bark of twigs and hatch after about 3 weeks. There are 5 nymphal instars [...] the harvest of the next year by weakening or killing fruit buds. Pear psyllas excrete large amounts of honeydew. Sooty moulds often grow on the honeydew [...] appearance of Pear psylla Adults pear psyllas are 2-3 mm long and orange red to blackish. They have white, longitudinal stripes on the back of the thorax

• Apple rosy aphid

  January 1, 1970

  cauda is dark, short and triangular. Dysaphis plantaginea lays eggs in autumn in bark crevices on spurs and smaller branches, and on the base of buds of [...] leaf fall and death of shoots. Fruits from infested trusses are small and malformed and ripen prematurely. Feeding of aphids directly on fruits causes reddish [...] blotches on the skin. Life cycle and appearance of Rosy apple aphid Aphids have a complex life cycle, with both winged and wingless forms of adults, and

• Silver-Y moth

  January 1, 1970

  line there is a dark dot on each segment. Dorsally there are alternating light and dark stripes. A characteristic feature of this caterpillar is the o [...] d leaves, accumulation of frass and destruction of growing points. Life cycle and appearance of Silver-Y moth The forewings of the silver-Y moth ( Autographa [...] August onward. The silver-Y moth ( Autographa gamma ) feeds on plants of 14 families and is sometimes also encountered in greenhouse crops such as sweet