• Whitefly

  vaporariorum adult What are whiteflies? Whiteflies are a group of small, winged insects that belong to the family Aleyrodidae. They are called "whiteflies" [...] because they are typically white or yellowish in color, and they are often found on the undersides of leaves. Whiteflies are not true flies but belong [...] species are the greenhouse whitefly , Trialeurodes vaporariorum , and the tobacco whitefly , Bemisia tabaci . Both are widespread, polyphagous and are broadly

• Predatory mites

  sachets are constructed from paper, rendering them particularly suitable for greenhouse applications. Examples of predatory mites in paper sachets are: Anso-Mite [...] the specific pest species infesting your plants. Different predatory mites are effective against different pests, so knowing the target pest is crucial. Scouting [...] What are predatory mites? Predatory mites are beneficial arthropods used in pest control to manage and reduce populations of harmful pests in various

• Aphidoletes aphidimyza

  stics at each stage. Here's how growers can identify the different life stages: Egg Stage: Aphidoletes aphidimyza eggs are tiny and elongated, usually [...] an oval silk cocoon constructed from long sticky threads. The cocoons are covered with small particles of soil and are about 2 mm long. Adult Stage: Adult [...] Start introduction as soon as the first aphids are detected in the crop. Introduction rates typically range from 1-10 per m 2 /release. Releases should be repeated

• Crazy roots, hairy roots, crown gall

  species cause different symptoms, like galls, tumours and excessive root growth. All four species cause the growth of galls on the stems, which are first white [...] possible that first infection is from the propagation material. Infection also takes place via wounds. After infection, galls are formed which break open, releasing [...] releasing many bacteria. These are dispersed by rain and wind and by humans and tools. Until now, no bacteria have been isolated from crazy roots. This disease

• Powdery mildew

  in this case also protrude from the stomata. Conidia are the main means of dispersal. They are dispersed by wind, as are the ascospores. In general, powdery [...] surface. Small structures are produced, the haustoria, from which the fungus penetrates the plant cell and takes up nutrients from the epidermal layer of [...] caused by many different species of fungi such as Erysiphe, Podosphaera, Oïdium, Leveillula. Damage symptoms Powdery mildew symptoms are fairly similar

• FAQ Spidex Vital

  the new product number(s), nothing will be different from the way you have been working with Spidex Vital. Are there any disadvantages compared to previous [...] 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 your [...] January 21 | 2021 www.koppert.com 1. Changes of Spidex What is the difference in the product presentation? Spidex Vital consists of all mobile stages

• Treatment of bumblebee stings and allergies

  al crops. There are various subspecies with differing appearances, including different colors and patterns. In general, bumblebees are larger than honeybees [...] honeybee, and wasp stings Bumblebees are found naturally in many countries. In addition, bumblebees and honeybees are used as pollinators in agricultural [...] bumblebee workers, which are the female bumblebees, and queens have stingers. This is also true with honeybees and wasps. Drones, which are the male bumblebees

• Aphids

  control Learn more about What are aphids? Aphids are small, soft-bodied insects that belong to the superfamily Aphidoidea. There are over 4,000 species of aphids [...] by the following characteristics: Size and shape: Aphids are small, soft-bodied insects that are usually less than 6 mm in length. They have a pear-shaped [...] identical to the mother. In other words, they are clones. Because there is no genetic recombination, different characteristics, such as colour forms, or

• Pollination checklist tomato

  Bumblebees are ideal for the pollination of tomato crops. Koppert's Pollination Checklist indicates how the best pollination results can be achieved. Download [...] three days. To check on pollination , collect about 20 closed flowers from different spots. All the closed flowers must have bite marks. The closed flowers [...] flowers provide a precise picture of the situation. Flowers that are open for longer than one day have between one and five bite marks Check the work of the

• Lesser house fly

  found worldwide, from the arctic to the temperate neotropics, and they typically reproduce in feces, compost and carrion. These flies are often a serious [...] annoying deterrent for employees. Adult flies can spread many different pathogens from contaminated breeding sites to healthy animals over large distances [...] General The genus Fannia comprises almost 300 different species of fly, including the lesser house fly , the latrine fly and a whole host of other man