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Vallee
Foraging Bee
Joined: 13 Mar 2010
Posts: 209
Location: Vienne, France.
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zaunreiter
Moderator Bee
Joined: 26 Nov 2007
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Location: Germany, NorthWest
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 Posted: Fri Nov 07, 2014 12:40 pm Post subject: |
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| Quote: | Published data indicate that in most cases there is_ no_difference in soybean yield when soybean seed was_treated with neonicotinoids versus not receiving_any insect control treatment. Furthermore,_neonicotinoid seed treatments as currently applied_are only bioactive in soybean_foliage for a period_within the first 3-4_weeks of planting, which does_not overlap with typical_periods of activity for some target pests of concern.[]
In most cases, these alternatives are comparable in cost to one another and to neonicotinoid seed treatments. The cost of application was considered in this comparison, although because these alternatives can be tank-mixed with other chemicals that are typically applied to soybeans, additional passes over a field would not be necessary. In comparison to the next best alternative pest control measures, neonicotinoid seed treatments likely provide $0 in benefits to growers and at most $6 per acre in benefits (i.e., a 0%-1.7% difference in net operating revenue). Some neonicotinoid seed treatment usage could provide an insurance benefit against sporadic and unpredictable pests, particularly in the southern United States. However, BEAD did not find information to support the real-world significance of this benefit, and overall evidence indicates that any such potential benefit is not likely to be large orwidespread in the United States. |
from:
Benefits of Neonicotinoid Seed Treatments to Soybean Production
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Peer Review Date: October 3, 2014
http://www2.epa.gov/sites/production/files/2014-10/documents/benefits_of_neonicotinoid_seed_treatments_to_soybean_production_2.pdf |
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Quality Top Bar Hives by Andrew Vidler
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Conserving wild bees
Research suggests that bumble bee boxes have a very low success rate in actually attracting bees into them. We find that if you create an environment where first of all you can attract mice inside, such as a pile of stones, a drystone wall, paving slabs with intentionally made cavities underneath, this will increase the success rate.
Most bumble bee species need a dry space about the size a football, with a narrow entrance tunnel approximately 2cm in diameter and 20 cm long. Most species nest underground along the base of a linear feature such as a hedge or wall. Sites need to be sheltered and out of direct sunlight.
There is a spectacular display of wild bee hotels here
More about bumblebees and solitary bees here
Information about the Tree Bumblebee (Bombus hypnorum)
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Barefoot Beekeeper Podcast
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4th Edition paperback now available from Lulu.com
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