N-20 IGR is a supplement that is completely mineralfortified and designed to provide sufficient (S)-Methoprene insect growth regulator to prevent the emergence of adult horn flies from manure of treated cattle. This unique supplement is second to none when compared to other low-moisture blocks. This block is the product of a state-of-the-art patented process that provides a unique 24-hour feeding system. N-20 IGR is an exceptionally dense all-weather block that will give you the most for your money.
When used as directed, N-20 IGR will provide sufficient
(S)-Methoprene insect growth regulator to prevent the
emergence of adult horn flies from manure of treated
cattle. Existing adult horn flies will not be affected. Start
feeding before horn flies appear and continue use until cold
weather marks the end of the horn fly season. Allow free
choice to cattle. Cattle should consume an average of 0.8
ounces of N-20 IGR per 100 lbs. of animal body weight
per day, which is equivalent to 8 ounces per day for 1,000
pound animal.
1. Assure cattle are not starved for nutrients prior to
feeding N-20 IGR.
2. Offer cattle 1 block N-20 IGR for every 15 - 25
head of cattle.
3. Remove all other self-limiting nutritional
supplements.
4. Locate N-20 IGR where cattle congregate
(watering, loafing, shade areas).
5. Replenish N-20 IGR on a regular basis as
needed.
6. If intake of N-20 IGR is below 0.8 ounces per
100 lbs. animal body weight per day, increase
the number of feeding locations and/or change
location(s) to areas more frequented by cattle.
7. If intake of N-20 IGR is above 0.8 ounces per
animal body weight per day, reduce the number
of feeding locations and/or change location(s) to
areas less frequented by cattle.
8. Introduction of this product after adult horn fly
infestation is established will require treatment of
cattle with adulticides if elimination of the adult
fly populations is desired.
Provide access to fresh water and free-choice salt at
all times
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