• Frequently Asked Questions

  August 5, 2021

  that they are placed on opposite ends of the crop. Q: How many bees are in a bumblebee hive? A: There are on average 250 bees in each hive. Q: How many hives [...] the bees are able to calm down from their shipping and handling, enabling the bumblebees to perform their correct orientation flights. Q: How do I close [...] hives do I need? A: If Koppert bumblebees are the only pollinators present, Koppert typically recommends 2 hives for every acre, with the exception of

• Spical: The Effective Weapon Against All Types of Spider Mite

  October 12, 2020

  mite drives quite a few growers around the world to despair. If conditions are hot and dry, you can almost guarantee that the two-spotted spider mite will [...] big advantage of the predatory mites in Spical , is that you can use them at an early stage. If they can’t find enough spider mites , they’ll just eat something [...] mites come in all sorts of species and sizes. Most spider mites (and there are 1,200 different species) make characteristic, small webs – usually on the

• Plant Pollinator interactions in high temperatures

  themselves, but flowers do not have stomata or any other means to cool themselves. In low humidity, bumblebees are also less active and do not find flowers [...] only if the radiation is at an intensity of no more than 400 watts. The table in figure 3 gives a representation of what the best conditions are for p [...] pollination. Of course, these are approximations and should only serve as a guideline. There are differences between varieties. Radiant heat affects the

• Initial Experiences: Spidex Vital Lives Up to its Promises

  May 24, 2021

  Together, they create an effective mix. You can see them soon after they have been released and they get right down to doing their job." A tense moment Sjaak [...] greenhouse climate, predatory mites are somewhat less keen on it. Spidex Vital still has to prove itself in such dry conditions. I want to see what happens [...] experiences, Sjaak van Dijk is pleased with Spidex Vital . "It’s a good sign if you have a predatory mite that immediately enters the crop to start searching

• Tomato Disease Top 10 Topped by mildew and Botrytis

  May 30, 2019

  cold spots. Only prune leaves if the wounds can dry up quickly, and use a knife to create straight wound surfaces (they dry faster than frayed wounds). There [...] The affected areas grow quickly and cause a lot of damage, especially if the stems are also affected. Botrytis spores can only germinate under moist conditions: [...] Wet wounds are also a favourite. Chemical intervention is unavoidable in the event of a serious attack. But before that happens, there are many other

• Ten facts about Fusarium

  December 9, 2021

  vary widely and are not always easy to recognize. We have compiled a list of ten facts about Fusarium that are important to know. There are many different [...] different species and varieties of Fusarium that affect a wide variety of crops. If a crop is weak, damaged, or under stress this increases its risk of being infected [...] Fusarium . Infection by Fusarium results in wilting and rotting areas that you can see at the base of the plant, the stem, or on the fruit. The most common

• Investing in thrips control: always a good idea

  March 6, 2023

  stop you from using these natural enemies. It will cost you much more if your product becomes unsaleable or the crop dies! Don't be complacent If you don't [...] for the whole year, thrips can bring major financial consequences. If you don't do anything at all, thrips could even completely destroy a crop! In the [...] The viruses that thrips can transmit in vegetable crops are a major threat. The best known are the tomato spotted wilt virus ( TSWV ) and the impatiens

• Spidend

  Spider mites are consumed entirely, only skin remains. Pack size 250 pupae. Presentation 550 ml plastic cup. Carrier Wood wool and dried cucumber leaves [...] receipt. If necessary, the product can be stored for 1-2 days. Storage temperature 12-14°C/54-57°F. Storage conditions In the dark. Recommended for you Spider [...] particular situation. Start introduction as soon as the first spider mites are detected in the crop. Introduction rates typically range from 0.25-25 per

• Horiver Wetstick

  or sticks at max. 30 cm above the crop and adjust height when plants are growing Do not place traps in-between the plants as parasitic wasps will then also [...] Storage temperature 0-32°C/32-104°F. Storage conditions In a cool, dry place. Recommended for you Crop scouting Protected vegetables [...] Thrips parvispinus Green: Echinothrips americanus Mode of action Insect pests are attracted to the colour of the sticky trap and get caught in the glue. Pr

• Manual Wireless Beehome

  Avoid contact with water. Do not drop the Wireless BeeHome system. Do not open components in the Wireless BeeHome system if you have not received the necessary [...] the afternoon). Please note: If you experience a power cut, check the time on the timer and adjust if necessary. When you use a digital timer, thanks to [...] thoroughly before you use the Wireless BeeHome system, paying particular attention to the safety instructions. Contact your supplier if you have any questions