• Amblydromalus limonicus

  limonicus for pest control Amblydromalus limonicus is used for the control of the following pests: Thrips Whitefly Amblydromalus limonicus is a generalist [...] fluids from leaves, which is useful for instance in sweet pepper crops as the predatory mite can establish in the crop before the pest appears. Amblydromalus [...] approximately 0.14 mm in diameter. The larvae have six legs, are the same colour as the eggs, and are only slightly larger. The larvae of Amblydromalus limonicus

• Municipality Venray: biological control of oak processionary caterpillars

  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 [...] results have been generally positive. ‘The trees that we have treated have been 90% cleared. What is interesting is that avenues running east to west are typically [...] against the oak processionary caterpillar for several years,’ explains Joep van Bergeijk, coordinator of oak processionary caterpillar management for the

• Two-spotted spider mite

  to the host plant by feeding on plant sap. They mainly occur on the underside of leaves where they pierce the cells and suck out the contents. The empty [...] as more cell sap is removed, the leaf, and eventually the whole plant, may die. In tomatoes and cucumbers, as little as 30% damage of the leaf surface can [...] to loss of the crop. The nymphs and adults also produce webs, and plants can get completely covered with such webs in which the mites live. The webbing and

• Thrips

  hatching, the larvae begin to feed on plant tissue on the underside of the leaf. The larvae are smaller than the adults and lack wings. Depending on the species [...] occidentalis ) is the most damaging species. Thrips form the order Thysanoptera, a name that literally means ‘fringed wings’, and refers to the eyelash-like [...] cause damage to the plant by piercing the cells of the surface tissue and sucking out their contents, causing the surrounding tissue to die. The resulting

• Pollination checklist tomato

  bumblebee bites onto the flower and makes the flower vibrate. This is known as buzz pollination. The imprints of the bumblebee's jaw on the flower (bite marks) [...] healthy crop and the presence of sufficient healthy flowers form the basis for good pollination . Various factors can disturb the health of the plant and thus [...] are exposed is too high for a lengthy period, the hive and the colony may suffer damage. You should therefore position the bumblebee hive in the coolest spot

• Dwarf bunt

  emergence and the fungi grow inside the plants to the growing tip. The fungi grow between the plant cells and eventually grow inside the kernels. When [...] disease in the next season. The optimum temperature for germination is 3-8 °C and it takes three to ten weeks for germination. The seedlings are infected after [...] heads. The glumes are opened either on some or on all spikelets, showing the bunt (smut spore) they contain, which is larger than a normal kernel. The bunt

• FAQ Spidex Vital

  Changes of Spidex What is the difference in the product presentation? Spidex Vital consists of all mobile stages of Phytoseiulus persimilis. The carrier material [...] material is the same as the current product. How will this change my existing program that has been working for years? Apart from the fact you have to switch [...] n of Phytoseiulus persimilis. Is this a different Phytoseiulus species to the Spidex I am used to? No, it is exactly the same Phytoseiulus species as in

• Wheat bunt

  before emergence and the fungi grow inside the plants to the growing tip. The fungi grow between the plant cells and eventually inside the kernels. When that [...] heads. The glumes are opened either on some or on all spikelets, showing the bunt (smut spore) they contain, which is larger than a normal kernel. The bunt [...] of the other mating type so that H-shaped structures are formed. These can germinate directly or form secondary sporidia. These sporidia infect the wheat

• Shallot aphid

  antennae are pale, apart from the ends of the antennae and the tarsi. The siphunculi are short an swollen towards the apex. The shallot aphid does not alternate [...] affected, fruits remain small and yield is reduced. On bulbs and shallot, the aphids often occur at the end of the storage period causing malformation of [...] to another host plant for overwintering and there is no sexual stage in the life cycle. No eggs are produced. Myzus ascalonicus is cold hardy and overwinters

• Aphelinus abdominalis

  products for advice on the best strategy for your situation. Best conditions for use of Aphelinus abdominalis The parasitic wasp Aphelinus abdominalis is effective [...] without laying an egg. The small aphids are used for host feeding while the larger individuals are parasitized. The control of the aphids is due to host feeding [...] with the parasitic wasp Aphelinus abdominalis Aphelinus abdominalis is a parasitic wasp for the biological control of various aphid species. The parasitic