• Roots Growers positive about Mycotal against whitefly

  Whitefly is and remains a pernicious pest for growers of tomatoes and other crops. This is further aggravated by the fact that there are almost no effective [...] product against whitefly in tomato that is effective and, unlike other products, also has a low MRL, which is a requirement for small cherry tomatoes. [...] wasps and predatory bug. ‘It goes without saying that Mycotal’s biological nature is a big plus, as it means we can use it almost indefinitely and the whitefly

• Amblyseius andersoni

  andersoni is a species of predatory mite and is used for biological pest control in horticulture and agriculture. These predatory mites are natural enemies [...] andersoni is effective at temperatures above 14°C/57°F. Optimum temperatures are between 20 and 28°C (68 and 82°F). Amblyseius andersoni is sensitive to [...] relative humidity below 65%. In tomato, use of Amblyseius andersoni is not recommended as it is hindered by the glandular hairs on the stems and leaves and does

• Diglyphus isaea

  instars: the first is colourless and transparent, the second is yellow and semi transparent with a brown fat body, and the third larval instar is blue-green. [...] Diglyphus isaea Diglyphus isaea is a small parasitic wasp belonging to the family Eulophidae within the order Hymenoptera . It is widely recognized for its role [...] programs. Diglyphus isaea is used for the control of the following pests: Leaf miners The parasitic wasp Diglyphus isaea is available at Koppert as Miglyphus

• Phytoseiulus persimilis

  outbreak is quickly and effectively dealt with, but the disadvantage is that it disappears rapidly in the absence of suitable prey. When prey is in short [...] The predatory mite Phytoseiulus persimilis is by far the most important natural enemy of Two-spotted spider mite (Tetranychus urticae) and has been used [...] the spider mite population by predation. Phytoseiulus persimilis is highly specific and is only effective against spider mites that produce a large amount

• Aphidend

  m2/release. Releases should be repeated at weekly intervals until control is achieved. Consult a Koppert advisor or a recognized distributor of Koppert [...] significantly at higher temperatures. As gall-midges are active at night, it is crucial to keep the night temperature above 12°C/61°F, to ensure optimal

• Aphids

  Effective aphid control is essential for maintaining healthy, productive crops. Biological control of aphids uses a combination of natural enemies that attack [...] of which is much larger than the other. For a large part of the season an aphid population consists of viviparous females. As reproduction is asexual, [...] the progeny of a single female is genetically identical to the mother. In other words, they are clones. Because there is no genetic recombination, different

• Treatment of bumblebee stings and allergies

  stinger, as is the case with honeybees and wasps. Drones cannot sting. The stinger is a weapon for defence. When a bee stings, some venom is injected into [...] in hospital is desirable, as the reaction may increase progressively over time. Toxic reactions Toxic reactions only occur when the victim is stung dozens [...] reaction in particular, the chance is small. Reactions to bumblebee stings may differ in each case. These days it is possible to take a test using purified

• Thrips

  One of the most distinctive features of thrips larvae is their characteristic "frass," which is a type of waste material that they produce as they feed [...] greenhouse horticulture. The Western flower thrips ( Frankliniella occidentalis ) is the most damaging species. Thrips form the order Thysanoptera, a name that [...] become desiccated and the adjacent cells turn brown. The vigour of the plant is also reduced by loss of chlorophyll. With a serious infestation the leaves

• Tobacco whitefly

  and the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking [...] es: If the population is very large, feeding on plant sap can affect the physiology of the plant, as a result of which growth is retarded. In full sunlight [...] in (sub-)tropical areas especially. The tobacco whitefly ( Bemisia tabaci ) is feared because of its high level of resistance to many insecticides and its

• Spider mites and other mites

  so keeping them healthy and strong is essential. Regular monitoring of your plants for early signs of plant mites is also critical. This can be done by [...] crops. Biological control of spider mites and other mites uses a range of natural enemies that target different developmental stages of the pest: Predatory [...] feeding habits. Plant mites generally thrive in warm and dry conditions, which is why they are often problematic in greenhouses and during hot, dry weather