• 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 [...] 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 and see [...] allergies This information on bumblebee stings provides guidance for reducing the chance of being stung by a bumblebee and about the possible reaction to a

• How to protect bumblebees from heat

  Placing the hive near the ground on the shade of the crop can keep the temperatures inside the hive lower. Shading Providing effective shading to the top and [...] temperatures The effects of the environmental temperature and sun radiation on the internal hive temperature can be great. We advise growers to protect the hive [...] 28°C inside the hive in any environmental conditions. Above 28°C the pollination capacity is reduced as their activity is focused on cooling the hive. Above

• Cottony cushion scale

  months. After leaving the egg sac, the crawlers settle along the midribs and veins of the leaves. The next two instars migrate to the larger twigs and branches [...] blocking the stomata and impeding gas exchange. Sooty moulds grow on the honeydew, blocking the light from the leaves and reducing photosynthesis. Also [...] running lengthwise over the surface. The ovisac may reach the same length as the body, giving an overall combined length of up to 20 mm. The 'females' are actually

• Vidi Fol (Fortafol)

  use Fill the application tank with half the required amount of water Add the correct amount of Vidi Fol to the water Mix thoroughly Fill the tank with [...] systems: Dissolve the required amount of Vidi Fol in the appropriate amount of water for the device that is used The pH of the solution should be between 5 and [...] Environmental conditions The pH of the solution should be between pH 5-7. Young plants can be sensitive. Test the sensitivity of the plants on a small scale, prior

• Ercal

  carefully inside the greenhouse Bend and tear off the strips opposite to the mounting hole Make sure not to touch the pupae during handling Suspend the cards in [...] in the crop, if possible approximately 75 cm under the plant head Avoid hanging cards at places exposed to direct sunlight Dosage The dosage of Ercal depends [...] until control is achieved. Depending on the specific situation, it may be better to switch to the use of En-strip or Enermix . Consult a Koppert advisor

• Natutec Drive

  through tubes over crops. The Natutec Drive is applicable in any situation and based on the specifications of the greenhouse. The Natutec Drive module can [...] does it work? The user puts beneficial insects inside the drum, which can carry up to 30 liters of material. The Natutec Drive will rotate the drum to keep [...] Natutec Drive to apply Koppert products evenly over the crop to get the most effective pest control. The product is a unit with a patented release system

• Mycotal

  coverage is essential for the best results. Direct the spray onto the underside of the leaves and to the growing points Agitate the spray solution continuously [...] then grows through the insect cuticle and produces spores on the outside of the cadaver, which may spread the infection to other vulnerable pests. Mycotal [...] into a slurry Fill the spray tank with the required amount of water Empty the slurry into the spray tank and stir thoroughly Add the correct amount of adjuvant

• Roots Growers positive about Mycotal against whitefly

  targets approved on the label. In several independent studies, Mycotal has been and continues to be the most efficient product on the market. Instead of [...] notice that the whitefly’s development cycle had clearly been inhibited in the spots treated with Mycotal. We used the same dosage of Enermix in the three test [...] there, so the level of infestation is higher and whitefly levels are high earlier in the year. We could theoretically spray everything in the greenhouse

• Dacnusa sibirica

  hole in the pupal cuticle with their jaws. The orientation of the wasp within the host pupa is the same as that of the leaf miner itself, the head of the [...] jaws. The larvae of the parasitic wasp only reaches full development after pupation of the leaf miner larva. The adult parasitic wasps emerge from the leaf [...] sibirica The parasitic wasp Dacnusa sibirica is available in a bottle ( Minusa ). Release parasitic wasps between the leaves of the crop in the morning

• Enermix

  carefully inside the greenhouse Bend and tear off the strips opposite to the mounting hole Make sure not to touch the pupae during handling Suspend the cards in [...] in the crop, if possible approximately 75 cm under the plant head Avoid hanging cards at places exposed to direct sunlight Dosage The dosage of Enermix [...] or until control is achieved. Depending on the specific situation, it may be better to switch to the use of En-strip or Ercal . Consult a Koppert advisor