• Podcast with Tech On Demand: A Biological Approach to Spring IPM, featuring Koppert’s Heidi Doering

  March 6, 2025

  She fills Bill in on what she’s seeing and hearing as spring production ramps up across North America. Bill and Heidi discuss her role as a “greenhouse CSI” [...] relationships in this regard, and gives her thoughts on Thrips parvispinus—the pepper thrips hitchhiking their way North on tropical plants. It’s a riveting [...] gives her a unique perspective. Bill Calkins is widely known as the editor of Tech On Demand, the email newsletter discussing technical topics in the hor

• Getting a handle on the spider mite – how can you keep population development under control?

  March 3, 2023

  itself off the moisture by sweating, which is easier in a dry and warm climate. In other words, a combination of cold and moisture inhibits both development [...] impact – in tomatoes, for example, the infestation develops more slowly than in a crop like cucumber. The presence of natural enemies also has a good inhibiting [...] mites untouched. This impacts the biological balance in the crop. Finally, there is a difference in the development speed between different species of spider

• Anthurium

  anthurium is a flowering, perennial plant and has beautiful, long lasting flowers that come in a variety of colors. However, the ‘flower’ is actually an [...] spathe) with many flowers on the spadix. The actual flowers on the spadix are surrounded by four stamens and they have many pistils. These flowers are both bisexual [...] Standard in Biostimulants Acadian™: The Gold Standard in Biostimulants Acadian™: The Gold Standard in Biostimulants PhylloKare™: The new standard in biostimulants

• Top Reasons for Using Bumblebees

  August 18, 2021

  bee. In most situations, “buzz-pollination” will allow a bumblebee to pollinate a flower in a single visit. A honeybee typically needs to visit a flower [...] Bumblebees will fly in winds of up to 40mph (64km/hr). Bumblebees pollinate flowers through a method called “buzz- pollination ”, a rapid vibrating motion [...] honeybees. Bumblebees work earlier in the morning and later into the evening hours. Bumblebees work better in tunnels, as they have a better sense of direction

• About bumblebees

  bumblebee to pollinate a flower in a single visit. A honeybee typically needs to visit a flower between 7-10 times, before it is fully pollinated Bumblebees [...] earlier in the morning and later into the evening hours Bumblebees pollinate flowers through a method called 'buzz- pollination ', this will allow a bumblebee [...] will start foraging for pollen and nectar, as well as search for a suitable nest site. Once a nest is chosen, she will start laying eggs to build her own colony

• Plant Pollinator interactions in high temperatures

  hand. A humidity of 85% is fine for pollination in a semi-closed greenhouse, while a humidity of more than 80% starts to impede pollination in a conventional [...] knowledge that flower temperature might also play a role; the influence of radiation also needs to be considered. A flower can turn into a marketable fruit [...] removing a head leaf. In this case, removing the head leaf may worsen the problem as it allows direct radiation to increase the flower temperature. In a semi-closed

• How to protect bumblebees from heat

  environmental conditions in which bumblebees need to operate in various countries worldwide conducted over a period of 35 years, has led to a number of innovations [...] bumblebees in regulating their climate in hot weather conditions. Bumblebee hives with a sustainable future Plant pollinator interaction in hot temperatures [...] keep cool in hot summer conditions to be able to function optimally and carry out their valuable pollination work. Best practice for pollination in hot te

• Biodiversity: Research into our positive impact on nature

  May 22, 2022

  resulted in a strategy and a definition. The definitions that reflect our positive impact on biodiversity: Our products originate from nature A rich biodiverse [...] work with nature Our biological solutions trigger a natural function within horti and agro-ecosystems. In agricultural systems, we work with nature and not [...] Fork, are aimed at a reduction of nitrogen and pesticides by 50% and working towards 25% organic farming by 2030. This policy is in potential very beneficial

• Cookie statement

  our website. A cookie is a small text file that is stored on your computer by your browser when you visit the website. The main function of cookies is [...] between different types of cookies. Functional cookies/necessary cookies Functional cookies ensure that our website functions correctly. These include the settings [...] visit our website, a banner will appear, which asks for your consent to use optional cookies. If you have given your consent, we will use a cookie on your

• Keep Them Cool!

  August 10, 2021

  The Natupol hives are designed in such a way that the bumblebees are able to influence the microclimate in the hive in the most efficient way. The hive [...] at the right level. A protective layer in the bottom of the Natupol box acts as insulation and reduces fluctuation in temperature in the hive. ‘The Natupol [...] be great however. A well visible, shady location near the ground in amongst the crop can make a difference of 4-15°C / 39.2-59°F in the hive. This can