• Leaf miners

  lost before the harvest is affected. The size of a leaf tunnel depends on the stage of development of the leaf, the species of host plant and the species of [...] miner control Learn more about What are leaf miners? Leaf miners belong to the order Diptera (the true flies ) and form the family Agromyzidae. This is a [...] is not universal among the Agromyzidae. Of the approximately 2,500 species in this family, only eleven are truly polyphagous. The species that cause most

• Phytoseiulus persimilis

  on spider mites. The quantity of prey consumed depends on the predator and prey populations, the sex and age of the predator, and the temperature and relative [...] use Push the centre of the cap to open the dosage hole Sprinkle material on leaves or pour into Diboxes Make sure the material remains on the introduction [...] but has a preference for eggs. The predatory mites pierce the prey with their mouthparts and suck out the contents. The adult Phytoseiulus persimilis also

• Tackling Tuta absoluta: Koppert proposes IPM

  April 8, 2016

  on the other hand are crucial in monitoring and mass trapping of the adult Tuta absoluta male moths. This strategy helps in early detection of the pest [...] validate the use of these IPM strategies to control Tuta absoluta and Fusarium wilt -Nematode complex in Tomatoes. The role of biological control At the heart [...] heart of this campaign are three superior solutions touted as key in tackling the twin tomato problems. 1 The first one is Trianum-P , a biological fungicide

• Protect your plants from Thrips with Horiver-TR®

  June 23, 2016

  sucking out cells on the leaf surface. This causes silver-grey spots on the leaves where the plant cells have been destroyed and reduces the production potential [...] potential of the plant. At high infection levels red spots and brown streaks are visible on the petals. Thrips can also deform the flower buds which may fail [...] problems present as imminent danger for a flower grower as the presence of thrips in the crop. Thrips are still a major pest in a many greenhouse crops in Kenya

• Mealybugs and scales

  which, as well as the white, waxy secretion of the mealybugs, reduces the ornamental value of the affected plants. Fruit and flowers are also fouled, rendering [...] is mainly the great quantity of honey-dew that causes the damage because of the sooty mould that grows on it. Ants are also attracted by the honeydew. [...] important families within the superfamily Coccoidea. This superfamily belongs to the order Hemiptera (the true bugs ). Coccoidea are at first sight barely

• Steinernema carpocapsae

  ultimately killing the host within a few days. The nematodes then feed and reproduce within the cadaver of the dead host, resulting in the emergence of a new [...] nematodes penetrate the pest's body through natural openings. Once inside the pest, the nematodes release symbiotic bacteria, typically of the genus Xenorhabdus [...] Distribute the spraying solution evenly over the soil/medium surface Application through irrigation systems: Pressure-compensated irrigation systems are recommended

• Black sigatoka disease

  conidia. The ascospores are wind-dispersed over longer distances, the conidia are splash-dispersed within the crop. Both types of spores cause the exact same [...] them, so the spores cannot be discharged from the lower leaves in the stack Use under-canopy (drip) irrigation to reduce splash dispersal Lower the humidity [...] or streaks on leaves of about one month old. The symptoms run parallel to the veins. Within a few days, the spots become a few centimetres in size and turn

• Diglyphus isaea

  Adult stage: The appearance of the adult is already clearly visible. Pupae are often visible through the leaf. The parasitic wasp escapes from the mine by making [...] Liriomyza trifolii ). The female wasp deposits her eggs inside the larvae of the leafminer, where the emerging larvae feed on the host’s internal tissues [...] body, and the third larval instar is blue-green. The full-grown larva usually pupates in the mine some distance from the dead host. Pupal stage: The pupa lies

• Aphids

  more about What are aphids? Aphids form a single, very large group of insects: the super- family Aphidoidea, belonging to the order Hemiptera . The aphids [...] Aphids can be identified by the following characteristics: Size and shape: Aphids are small, soft-bodied insects that are usually less than 6 mm in length [...] and flowers by piercing the plant tissue and sucking out the sap. This can result in stunted growth, curling or distortion of the leaves, yellowing, or

• Beet armyworm

  es for the growth of the crop. With a substantial population of caterpillars, the damage can spread to the stems, and in the worst cases to the fruit. [...] feed mainly on the growing tips. They produce large holes in the leaf, sometimes stripping the leaf down to the mid-rib. Flowers and buds are also attacked [...] armyworm The beet armyworm (Spodoptera exigua) is a small, nondescript moth, that hides during the day and is active only at night. The forewings are grey-brown