Full TGIF Record # 120381
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Publication Type:
i
Professional
Content Type:Q & A
Corporate Author(s):USGA Green Section
Title:Rates and time of application of lead arsenate for earthworm control
Section:Our letter box
Other records with the "Our letter box" Section
Source:Turf Culture [II]. Vol. 1, No. 1, January 1939, p. 91.
# of Pages:1
Publishing Information:Washington, DC: United States Golf Association, Green Section
Question:At present I am assisting The Panama Canal employes in the construction of a 9-hole golf course at Gamboa. The ground is badly infested with worms. I should like to know how much arsenate of lead to use for each 1,000 square feet of top surface. Should the first application be 1 or 2 feet below the surface?
Source of Question:Canal Zone
Keywords:TIC Keywords: Application rates; Application timing; Earthworm control; Lead arsenate; Recommendations
Answer/Response:When applying arsenate of lead, we have found that it is not necessary to put it deep into the soil. Earthworms, like grubs, feed most heavily near the surface, and therefore the poison should be at the surface. You can apply the arsenate of lead before you seed, by lightly raking it into the soil during the last raking process before sowing the seed. On the other hand, it may be applied after the seed has germinated. Usually the before-seeding method is preferable, although there is a likelihood that it may slightly retard the germination of the grass seed. This retarding effect, however, can be overcome by adding an application of sulphate of ammonia, about 5 pounds to 1,000 square feet. The amount of arsenate of lead needed to control worms varies with different soils and with different species of earthworms. Some tropical and semi-tropical species are hard to poison. The heavier soils generally require more arsenic than do the light, sandy soils. We ordinarily recommend that arsenate of lead be applied at the rate of 5 pounds to 1,000 square feet. If this rate is not sufficient for your soil repeat the treatment until you build up enough poison to get control. From the standpoint of economy, we feel that it is wiser to try the lighter dosage and be prepared to add more until you get the desired effect rather than to go to the expense of immediately applying the heavy treatment. It may take three to four weeks for the arsenic to show much of an effect on earthworms. Therefore do not be in a hurry to pass judgment on the effectiveness of the treatment.
Language:English
References:0
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
USGA Green Section. 1939. Rates and time of application of lead arsenate for earthworm control. Turf Culture [II]. 1(1):p. 91.
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http://gsrpdf.lib.msu.edu/ticpdf.py?file=/1930s/1939/390190.pdf#page=2
    Last checked: 01/24/2017
    Requires: PDF Reader
    Notes: Item is within a single large file
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MSU catalog number: SB 433.25 .C66
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