• Spider mites and other mites

  brown, or red. They have eight legs and are closely related to spiders, but they lack the distinct body segmentation that spiders have. Gall mites and russet [...] seen with the naked eye and only have four legs. Tarsonemid mites cannot also not be seen with the naked eye but have eight legs. For these plant mites [...] eggs hatch, the mite larvae emerge. These larvae have three pairs of legs, except for Eriophyidae which have two pairs of legs. During this stage, the larvae

• Nematodes established solution for Nesidiocoris in France

  hydroponic cultivation, in Châteaurenard near Marseille, and have done for four generations. We have to control Nesidiocoris because it is very strong in this [...] in France. We saw that it was effective. We have used Capsanem on several blocks to regulate the bug and have tried several application methods: the small [...] breeding cages in Almeria, demonstrating the interest in the method that we have validated in the field. The results are very clear. It is very effective

• Fusarium spp.

  is the best-known. The mycotoxins are toxic to mammals so maximum levels have been determined. Fusarium sambucinum (a.k.a. F. sulphureum ) causes dry rot [...] becomes visible. Fusarium solani is a complex of many species, who collectively have a very broad host range. F. solani causes foot and/or root rot of the infected

• Municipality Venray: biological control of oak processionary caterpillars

  difference According to Bergeijk, the results have been generally positive. ‘The trees that we have treated have been 90% cleared. What is interesting is that [...] of oak processionary caterpillar, while those running north to south still have some nests. It is possible that there has been more drift during spraying [...] which means that the nematodes are more easily blown away. In some cases, we have to take curative action and extract the nests. But, on balance, Entonem makes

• Cannabis aphid

  stripes running the length of the body. The winged forms have a dark head and thorax. Cannabis aphids have long antennae (1.1–2.2 mm) and between these are two [...] h them. The hop aphid is common in North American hops production; there have been unconfirmed reports of Phorodon humuli developing on cannabis plants

• Fall Armyworm

  caterpillars ) are 30-40 mm long. They have six instars that vary in colour from light tan to green to black. They have a distinct white inverted Y-shaped [...] appearance). Life cycle of the Fall Armyworm Adult moths are 20 to 25 mm long and have a wingspan of 32-38 mm. They are nocturnal and most active during the warm

• Tomato russet mite

  and the rest of the body. All mobile stages have only two pairs of legs, whereas other mite groups have four pairs. Eggs are roughly 0.05 mm in diameter [...] they are creamy white but turn to a patchy yellow as they age. The mites have two nymphal stages: sometimes they are also called larva (1st stage) and

• La Hacienda Fresh increases crop profitability thanks to biological control

  us to have a better yield by lengthening the harvest weeks. We have managed to reach 42 weeks thanks to the fact that agrochemical applications have decreased [...] Hacienda Fresh and Koppert have been implementing a successful biological pest control program for the past four years. Together they have managed to control pests [...] natural enemies of these pests and the reduction of agrochemical applications have had a positive impact on their crops. "Koppert products are easy to implement

• Whitefly

  are small, winged insects that are typically about 1-2 mm in length. They have a distinctive, triangular shape and hold their wings in a vertical position [...] produced by the adults, which is covering their body and wings. Some species have dark markings on their wings or bodies. Movement: Whiteflies are weak fliers [...] result in yellowing, wilting, or premature leaf drop. If you suspect that you have a whitefly infestation, it's important to confirm their presence and take

• Garden chafer

  grasses. Third instar larvae can also feed on bigger roots. After the roots have been destroyed the larvae move into corms, rhizomes and stem bases of plants [...] instar and the adult beetle. Adult garden chafers ( Phyllopertha horticola ) have red-brown slightly hairy wings with a dark edge. The neck shield is metallic [...] time become nearly spherical through water absorption. Chafer larvae (grubs) have brown heads and whitish bodies, and normally lie in a characteristic 'C-shaped'