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Koppert Natupol Excel is the REPLACEMENT for Koppert Natupol Class A.
Koppert Natupol Excel is specifically developed and improved for crops and produce with a large number of blooming and blossoming flowers per square meter per week, such as snack tomatoes or cherries, and berries like strawberries. It can be utilized in illuminated greenhouses under warmer environments or artificial light. The blue door helps guide the bumblebees inducing better orientation for their return flight. Printed on the outside of the box is marked UV orientation patterns that are indistinguishable to the naked human eye but much appreciated by bumblebees which then results in raised and improved pollination. This increases the efficiency in low light conditions. This new innovative solution is based on extensive research which helps bumblebees during unfavorable conditions. The hive is furnished with a sophisticated unified insulation system, installed around and under the brood. This allows the bumblebees to spend less time and 20 percent less energy regulating the internal microclimate, producing more effective and efficient pollination activity. In addition, it has a larger colony with large ventilation holes outfitted with a smart block against intruders and 19 percent more sugar water for longer and increased pollination. Covers 1,000-15,000 square feet and lasts an average of 9 weeks, sometimes more. One hive support contains a colony, workers, brood including eggs, pupae, and larvae and a bag with sugar solution.
|Active Ingredient||Contains colony, workers, and brood (pupae, eggs, and larvae), a bag with sugar solution.|
|For use in||Crops with a high number of blossoming flowers per m^2 per week (above 35) such as cherry/snack tomatoes and (straw)berries. Also perfect for use in greenhouses, artificial light and warmer environments that are at the beginning of the planting cycle (before full bloom).|
|Pet safe||Yes, if followed as directed on the label.|
|Yield||1,000-15,000 square feet|
|NOT FOR SALE TO||OR. CA required permit.|
|Shipping Weight||7.00 lbs|
|Manufacturer||Koppert Biological Systems (Mfg. Number: USIMPE)|
A) Receiving and unpacking your NATUPOL hive.
If your hive(s) were shipped by UPS, the nectar tank in the hive unit(s) must be uncapped. Please refer to the “Attention” sticker located on the cardboard lid for instructions. Please contact Koppert (1-800-928-8827) or your local distributor if there are any questions.
B) Placing the hive in your crop.
C) Opening and closing the flight door
The foraging of the bees can be controlled by adjustment of the flight door. The flight door is a blue plastic plate, located on the right hand side of the box. There are three positions for the door, which are described below.
How greenhouse conditions can affect your bumblebees
What to do when you have to spray chemicals
Many chemical treatments can kill bees. If you are unsure about the toxicity of a pesticide, please contact your distributor, who can provide a “Koppert Side Effect List.” In most cases, this list will help you to determine the appropriate action. Options include:
Please contact your distributor if you are interested in investigating pest management techniques including parasites, predators, insecticidal soaps and microbial pesticides.
(*comments specific to tomato production)
The pollination percentage is a measure of how many flowers have been visited, indicating the potential fruit set. Checking pollination levels will give you good insight into the bee’s performance and indicate when to order a new hive.
How do the bumblebees pollinate?
Bumblebees visit flowers as they begin to produce pollen and nectar, which they use as food for developing brood. In collecting pollen from a flower, bumblebees show a behavior that makes them especially effective: they clamp their jaws around the anther cone, and rapidly shake it. This “buzz” pollination causes the pollen to fall onto the stigma and also on the bumble bee. After just a few hours in the greenhouse, you can usually see some dark pollination marks left by the bee’s jaws.
How to check the pollination percentage
Check the pollination percentage twice a week. You will need approximately 10 minutes to check a greenhouse up to 43,000 square ft.
A) Walk through your aisles and randomly pick 30 to 50 flowers that have closed within the previous day. These flowers will be easy to pick because they will be loose at the base of the flower.
B) Collect the flowers from throughout the greenhouse (each aisle, high and low, center and edges).
C) On a tray or table, open each flower and look at the yellow cone. Visited flowers will have dark bruises (pollination marks) on the anther cone. The marks always occur in pairs, made by the two jaws of the bee.
Note: When there are many flowers of good quality available the marks may be faint. This is because the bees can achieve good pollination without having to “buzz” so vigorously.
Determine the pollination percentage as in the example at right:
For crops that flower over a long period of time, you’ll want to track the pollination percentage on a regular schedule, such as in the example at right.
Marked flowers: 42
Unmarked flowers: + 8
42/50 x 100 = 84%
Date 1 2 3
Nov. 1 84 95 89
Nov. 4 90 99 91
Nov. 8 97 98 92
Nov. 11 95 100 96
Nov. 15 93 93 91
Nov. 18 90 91 88
Troubleshooting: how to handle low pollination percentages:
Normally your pollination percentage should be between 80 and 100%. If pollination falls below 80% (or a higher percentage for cluster tomatoes) you should start to hand pollinate while you determine what’s causing the problem.
Possible causes of low pollination rates include:
If you cannot find the cause of the pollination problem, please contact your distributor.
Caring for bee stings
Bumblebees don't have an aggressive manner. They generally sting only when agitated or frightened. Nevertheless stings may occur when the nest box is accidentally disturbed, or when a bee is trapped in clothing. Stings are less likely if you avoid exposing bees to:
If someone is stung, make sure that he or she does not have an allergic reaction. If that happens (in rare cases), call immediately for medical assistance.
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