• Experience Centre

  agriculture and horticulture. Opening hours: weekdays (Mon - Fri) from 9:00 AM to 5:00 PM. A tour takes an average of 1,5 hours and is suitable for groups of up

• Amblydromalus limonicus

  whitefly eggs (less than 24 hours old, white in colour) are a much better prey than older whitefly eggs (more than 24 hours old, brown in colour). At 25°C [...] and predation rates. Under fluctuating conditions, such as 16 hours at 16 °C and 8 hours at 10 °C, it continues to suppress pest populations effectively [...] on leaves Make sure the material remains on the leaves for at least a few hours after introduction Can also be applied with (Mini)-Air(o)bug The dosage of

• Pollination checklist Growing lights

  effect on the development of the hives. 10:00 1! Bumblebees need max. 2 hours to return to their hive 15:00 Do not keep a hive closed for longer than [...] pollen is fed to the bees. Bumblebee pollination of preferably at least 4 hours per day 12:00 11:00 Monitor pollination closely during snowfall and introduce [...] remove the snow from the roof. 07:00 06:00 Flowers stay open for +/- 10 hours 05:00 04:00 100 m Hive location 03:00 Place the hives near the central

• Apple scab

  s, between 18 and 24 °C, only 9 hours of leaf wetness is required, at lower temperatures this increases to 12-28 hours of leaf wetness for successful infection

• Enermix

  most effective at temperatures between 20°C and 25°C (68 and 77°F). At a 24 hours average temperature below 17°C/63°F the control of whiteflies may be insufficient [...] insufficient. For optimal performance of Eretmocerus eremicus the 24 hour average greenhouse temperature needs to be at least 20°C/68°F. Eretmocerus eremicus

• How to protect bumblebees in cold

  to reach the minimum 24-hour temperature of 15 ºC for optimal plant development. When your crop is healthy and the average 24-hour temperature is at least

• Tomato leaf miner

  sickle-shaped exit hole in the leaf with its mouth parts. After roughly one hour the larva crawls out of the leaf and falls to the ground. This occurs in [...] just prior to pupating, is known as a prepupa. This stage lasts only a few hours.

• Ervibank

  insecticides. Remove the banker plants from the greenhouse for at least 24 hours when fogging/spraying an insecticide. If the insecticide is applied via the [...] system, remove the drippers from the banker plants for approximately 24 hours. In these cases it may be necessary to switch to an alternative way of irrigation

• Plant Pollinator interactions in high temperatures

  pollination. If the temperature reaches 40° C for one hour, there is also an immediate effect. For a high 24-hour temperature to affect pollination takes at least [...] that exposure to maximum temperatures of more than 30° C for a couple of hours has a negligible effect on pollination. However, a full day above 30° C has [...] Stigma is protruding through the protective flower cone because of high 24 hour temperature At temperatures of more than 30° C, the pollination degrades

• Treatment of bumblebee stings and allergies

  couple of hours. This can occur directly after the sting, but more generally it starts after some hours. The swelling or itching may last for hours or even [...] usually become evident very soon after the sting (from a few seconds to half an hour after the sting). Allergic reactions are classified in four levels, in order