• Bacterial canker of tomato

  potato, the disease usually only occurs in the second half of the season. The first symptoms are wilting of the lower leaves and subsequent expansion of the [...] discolouration of the vessel tissue appears, especially when cutting the tubers. This discolouration is round, hence the name ring rot. Life cycle and appearance [...] then growing into the vessels of the plant. Plant growth is inhibited and the plant wilts because the xylem vessels become blocked. The bacterium can survive

• Black root rot of cucurbits

  survive adverse conditions for years in the soil, but little else is known about the life cycle. The fungus is dispersed by water, air and soil particles [...] to a few of the roots but in severe cases all roots may be infected. At the final stage of the disease, only vascular tissue remains because the cortex (outer [...] stage may kill the plants. In case of a less severe infection, the vines may wilt at a late stage of the crop, but when water supply is in any way limited

• Pierce's disease of grapevine

  extends to the rest. Eventually, the whole root system is killed and the trees die. Life cycle and appearance of Pierce's disease of grapevine The bacteria [...] plums): In peach, the canopy of infected plants is compact and umbrella-like due to the shorter internodes. The foliage is denser and the leaves are a darker [...] along the margin or the tip from early to midsummer. The necrotic area spreads over the leaf from the margin and is marked by a chlorotic band. In the beginning

• Root and crown rot of strawberry

  Phytophthora cactorum. Life cycle and appearance of Root and crown rot of strawberry Not much is known about the life cycle. The fungus produces ascospores [...] clavispora in the case of root and crown rot (of strawberry), first found in The Netherlands, and Pestalotiopsis longisetula in the case of leaf spots, such [...] spot of strawberry and fruit rot reported mainly from Brazil. The genus is quite complex, so the taxonomy may change. Pestalotiopsis clavispora is also

• Premium Quality, Around The World

  March 6, 2023

  in the Netherlands, Slovakia, Mexico, Turkey, Spain, Brazil and the US ensure that the distance between Koppert’s live products and the growers is as short [...] customers alive and kicking is not exactly the easiest task in the world. That task becomes even more complex if a product in the Netherlands needs to arrive [...] with precise climate control in terms of temperature and humidity. That climate is specifically tailored to the needs of every individual beneficial, bumblebee

• Treatment of bumblebee stings and allergies

  epinephrine into the thigh in the case of a sting. Tests and treatments are available at the Allergology department of the RdGG (Dr de Groot) at the Diakonessehuis [...] Treating an allergic reaction In the event of a fever occurring or a grade 1 reaction, contact a GP. The decision can be made to keep an eye on the situation [...] 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

• Airobug – “the aerial application system”

  January 6, 2021

  installation of the raised benches in the blocks”. “We have found the Airobug is able to distribute the beneficial insects more accurately, releasing the carrier [...] system. It is built around the Airobug which is the principle delivery system that runs on the overhead monorail rails systems in the glasshouse. The lateral [...] lateral distribution of the product can be increased by adjustment of the revolving dosage containers installed on either side of the Airobug device, powered

• Municipality Venray: biological control of oak processionary caterpillars

  In the Municipality of Venray a third of the tree stock in the area, some 11,000 trees, is oak. ‘We’ve been using Koppert’s nematode product Entonem as [...] positive. ‘The trees that we have treated have been 90% cleared. What is interesting is that avenues running east to west are typically free of oak processionary [...] for the Municipality of Venray. ‘We use nematodes at locations in outlying areas where there might be protected species of butterfly and moth. The major

• Mini-Airbug, Rapid deployment of beneficials.

  May 8, 2019

  application The airflow from the ventilator, and rotating dosage container, ensures an even distribution of the material up to ± 1.5 to 2 metres from the Mini-Airbug [...] application of predatory mites to the entire crop, or localised pest control. The device is convenient, and ideal for releasing various types of predatory [...] work session. Natural enemies are distributed over the crop very evenly, increasing the effectiveness of pest control This handy device makes releasing predatory

• Predatory mite pioneers: A journey of biocontrol innovations

  October 21, 2024

  technologies like the Airobug.” Lifting barriers The Airobug is one of Koppert's air blowing systems for the efficient and even distribution of natural enemies [...] control , as the mites are able to reach the pest faster.” An innovation toolbox Since 2006, Koppert has accelerated the introduction of new solutions [...] different growing conditions. When speed is of the essence, we rely on this toolbox of solutions. By choosing the right combination, we can respond much