• Codling moth

  moth ( Cydia pomonella ) is a notorious, worldwide pest of apple and also occasionally of pear, quince, peach and other fruits. It is very common in Europe [...] flesh, leaving behind brown frass. The entry point is then greatly enlarged as the tissue beneath is eaten away. Infested fruits usually ripen prematurely [...] ocellus on the hind part. The hindwings are brown. The eggs are about 1.3 x 1.0 mm, and whitish opalescent when laid. Later, the developing embryo is visible

• Tarnished plant bug

  bug) is native to North America, and it is especially common across the eastern half of the continent, from northern Canada to southern Mexico. It is one [...] spring and into summer. As they feed, they lay their eggs on crop stems and, if the weather is warm enough, can produce up to three generations per year [...] one of the most damaging Hemiptera species, known to feed on almost all commercial crops. Lygus lineolaris boasts at least 385 different host species, the

• Japanese beetle

  the body. It is a pale-cream colour at first, gradually becoming tan and finally taking on the metallic green of the adult. The adult is an attractive [...] increase, the grubs move closer to the surface and resume feeding on plant roots at 2.5 to 5.0 cm depth. Pupation usually occurs after 4-6 weeks of feeding [...] control actions were taken to prevent further spread. The Japanese beetle is on the A2 list of the European Plant Protection Organization (EPPO). To prevent

• Municipality Venray: biological control of oak processionary caterpillars

  Entonem is that nematodes kill fewer other caterpillars , which means they are less harmful to biodiversity. This is something that is high up on the political [...] positive. ‘The trees that we have treated have been 90% cleared. What is interesting is that avenues running east to west are typically free of oak processionary [...] 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 a curative measure

• Black vine weevil

  family Curculionidae. Damage symptoms The major damage is caused by the feeding of the larvae on the roots. After the roots have been destroyed the larvae [...] the soil where they feed on the roots. They are legless, roughly 1 mm long at hatching, but grow to approximately 12 mm. A larva is often curled into the [...] the typical C-shape which it assumes whenever it is disturbed. The body is covered with stiff white to light brown, bent hairs. Overwintering occurs in the

• Thrips

  often found on the undersides of leaves, where they feed on plant sap. Damage: Thrips can cause damage to leaves, flowers, and fruits by feeding on plant tissue [...] adults feed on all aerial parts of the plant and are fairly mobile. Immediately after hatching, the larvae begin to feed on plant tissue on the underside [...] Thrips are small insects (0.5-14 mm), with the largest species found in the tropics. In temperate regions they are not larger than 2.5 mm. All thrips species

• Tobacco aphid

  East and is a key pest of tobacco crops in both the United States and South America. The tobacco aphid ( Myzus persicae subsp. nicotianae ) is also encountered [...] excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky. Black fungal moulds ( Cladosporium spp.) grow on this honeydew [...] in colour. When reproduction is asexual, the young aphids are born as developed nymphs. They immediately start to feed on plant sap and grow rapidly. Aphids

• Pollination

  Pollination is the transfer of pollen from the anthers of the flower to the stigma of the flower. If the pollen is transferred from anther to stigma on the same [...] flower it is called self-pollination. Cross pollination, is the transfer of pollen from the anther of one flower to the stigma of another flower on the same [...] What is pollination? Pollination is an annual challenge for growers when it comes to the production of vegetables, fruit and seed. Well pollinated crops

• Nutari

  low prey densities. Mode of action When density of the target pest is low and there is no alternative food available in the crop Nutari can be provided as [...] by sprinkling on the leaves by hand or with an Air(o)bug Large heaps of carrier material may cause leaf damage, so make sure the material is distributed [...] of Koppert products for advice on the best strategy for your situation. Environmental conditions Carpoglyphus lactis is tolerant to a wide range of conditions

• Artificially lit crops pollination advice

  allocation based on latitude. Hive placement advice Snow during pollination How to pollinate during snow? During snowfall, orientation is seriously disturbed [...] the crop, it is advised to turn off grow lights well before sunset to encourage their return to the hive. LED lights and pollination Based on experiences [...] As bumblebees rely on sufficient daylight, artificial lighting can be used to ensure good pollination conditions. As bumblebee may face orientation problems