• Tobacco aphid

  Far 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 e [...] aubergine, chrysanthemum, and various pot plants and cut flower crops. Damage symptoms Nymphs and adults extract nutrients from the plant and disturb the balance [...] contaminating fruit and ornamental crops and rendering them unsuitable for market. At the same time, photosynthesis in the leaves is reduced, affecting

• Black bean aphid

  aphid, Aphis fabae , is widespread in temperate regions, where it is a serious economic pest of beans. It is highly polyphagous, and attacks a wide range [...] cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with unfertilized [...] The black bean aphid is dark olive green to black with black bands across the back. The two cornicles (or siphunculi) are short and usually darker than

• Municipality Doetinchem: Entonem nematodes managing oak processionary caterpillar

  it is important to maintain the biodiversity in the centre, and public opinion is quite sensitive to spraying here. We worked in consultation with distributor [...] caterpillars is much lower, which is a great benefit to biodiversity. In mid-April, we started using nematodes at locations with significant contact options [...] trees in the forests and plantations around Doetinchem. Marc van Rijswijk is the spokesman for Buha, the implementing organization for the Municipality of

• Impatiens thrips

  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 orange [...] cucumber and eggplants. It lives exclusively on the leaves and is often present on weeds in greenhouses. Damage symptoms Thrips cause damage to plants by [...] surface tissues and sucking out their contents, causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black dots of

• En-Strip

  places exposed to direct sunlight Dosage The dosage of En-Strip depends on climate, crop and whitefly density and should always be adjusted to the particular [...] Releases should be repeated until control is achieved. At increasing temperatures it may be better to switch to the use of Enermix or Ercal . Consult a Koppert [...] En-Strip is best to be used in combination with generalist predatory mites ( Amblyseius andersoni , Amblyseius swirskii , Neoseiulus cucumeris or Amblydromalus

• Miglyphus

  Combined use Can be combined with Minusa. Storage time after receipt Apply as soon as possible after receipt. If necessary, the product can be stored for 1-2 [...] control is achieved. At low temperatures ( Environmental conditions Diglyphus isaea is most effective at temperatures between 15°C and 25°C (59 and 77°F) [...] parasitic wasps of Diglyphus isaea kill second and third instar leaf miner larvae in the mine and lay their eggs next to them. The eggs develop into parasitic wasps

• Greenhouse whitefly

  which growth is retarded. In full sunlight, leaves can wilt and fall. Such leaf damage can in turn influence the development of fruit and lead to a reduction [...] of sugar, and the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result [...] plant leaves and secreting honeydew. This can have the following consequences: If the population is very large, feeding on plant sap can affect the physiology

• Thripex-V

  temperatures between 15 and 25°C (59 and 77°F). It is not effective at temperatures above 30°C/86°F. Neoseiulus cucumeris is sensitive to relative humidity below [...] Vermiculite and a fraction of bran. Application Turn and shake the bottle or bucket gently before use Bottle: Push the centre of the cap to open the dosage [...] below 70%. Combined use Can be combined with Orius spp. Do not combine with other generalist predatory mites ( Amblyseius swirskii , Amblydromalus limonicus

• Wireless Beehome

  With the Wireless Beehome system, the hive entrance of the Natupol hives can be opened and closed automatically on set times. When assimilation lights [...] central transmitter can manage several receivers in the greenhouse and a distance of around 100/150 meters depending placement and greenhouse construction [...] The moment of opening and closing the hive entrance can be controlled by a signal from the climate computer or a timer connected to the central transmitter

• Cabbage looper

  sesame and cotton. One of the reasons why this plague can be serious is that the moth is able to disperse widely, reaching distances of up to 200 km. [...] voracious appetite and can daily consume up to three times their body weight. Plants can be severely defoliated and stunted. Life cycle and appearance of [...] attached to the leaf, and are a yellowish or greenish white colour. The Larvae hatch after 3 to 4 days. Since their legs are confined to the front and rear