• Dacnusa sibirica

  hole in the pupal cuticle with their jaws. The orientation of the wasp within the host pupa is the same as that of the leaf miner itself, the head of the wasp [...] jaws. The larvae of the parasitic wasp only reaches full development after pupation of the leaf miner larva. The adult parasitic wasps emerge from the leaf [...] larvae of Liriomyza trifolii than with the larvae o f Liriomyza bryoniae , it is perfectly capable of developing in the larvae of both species. Dacnusa sibirica

• Spidex Vital lives up to its promises

  they lay their eggs earlier, the population develops more rapidly.’ A sense of calm on the farm The increased effectiveness of Spidex Vital is a major advantage [...] potential to develop into a game changer in spider mite control. It changes the rules of the game and is even more in control of spider mites . And the grower [...] cucumbers. The ability of Spidex Vital to tackle spider mites and hot-spots effectively brings a sense of calm to the farm.’ He states that the weather

• Outdoor crops pollination advice

  depends on the crop and the presence of other pollinating insects. Position the hive horizontally, so that the bumblebees always have access to the sugar water [...] days before the flowering period begins. The bees will start pollinating as soon as the flowers open. Ensure that the hive is positioned in the crop immediately [...] allow the bumblebees to find food sources. Placement To maximize pollination results, evenly position the hives throughout the plot. The number of hives

• Onion thrips

  black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations become serious [...] eggs of the onion thrips (Thrips tabaci) are laid in leaves, flower petals and in the soft parts of stalks. They are inserted into the plant tissue with a [...] head and bright red eyes. The colour of the adult depends on the food source. Onion thrips (Thrips tabaci) usually pupate in the ground, although pupae can

• 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 [...] Hang the cylinder horizontally from a crop wire, branch, or leaf stalk by winding the label around it and sticking the end of the label back onto the label [...] Praon volucre The parasitic wasp Praon volucre is available in a bottle ( Aphiscout ) Peel off the outer layer of the label starting at the upper right corner

• Aphidius matricariae

  appearance of Aphidius matricariae Adults are 3-4 mm golden brown wasps with long antennae. Characteristic for the distinction of the species are the fine stripes [...] stripes on side parts of the wasp waist. Aphidius matricariae is specific to aphids of the family Aphididae. Most species belong to the genera Myzus, Aphis [...] strategy is highly efficient, allowing the larvae to develop and grow while depleting the aphid population. The larvae are adept at adjusting their feeding rates

• Aphidius ervi

  to parasitize. Because of this, the disturbance of aphid colonies can have a serious impact. The aphids can be spread through the crop, and it has been [...] is used for the control of the following pests: Potato aphid ( Macrosiphum euphorbiae ) Glasshouse potato aphid ( Aulacorthum solani ) The parasitic wasp [...] recognized distributor of Koppert products for advice on the best strategy for your situation. Best conditions for use of Aphidius ervi The parasitic wasp Aphidius

• Aphidius colemani

  Aphidiidae. First the host is examined by drumming with the antennae. This gives the wasp the information about whether the aphid is the right species, and [...] disturbance of the aphid population by the presence of the parasitic wasp also has an effect: the alarmed aphids secrete a warning substance, which affects the [...] Aphidius colemani is widely used in the biological control of aphids . Aphidius colemani is used for the control of the following pests: Cotton aphid ( Aphis

• Western flower thrips

  patches on leaves and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When [...] finally the adult insect. The eggs of the western flower thrips (Frankliniella occidentalis) are laid in leaves, flower petals and in the soft parts of stalks [...] their developing wing buds. Compared to the prepupa, the pupa has longer, more developed wing buds and longer antennae that are curved back over the head

• Impatiens thrips

  patches on leaves and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When [...] found on the upper- and undersides of the leaf. Pupation occurs on the leaf rather than on the ground. The prepupae and pupae remain immobile on the leaf tissue [...] to plants by piercing the cells of the surface tissues and sucking out their contents, causing the surrounding tissue to die. The resulting silver-grey