Full TGIF Record # 121075
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Publication Type:
i
Professional
Content Type:Q & A
Corporate Author(s):USGA Green Section
Title:Green bugs on Kentucky bluegrass
Section:Our letter box
Other records with the "Our letter box" Section
Source:Turf Culture [II]. Vol. 1, No. 2, April 1939, p. 150.
# of Pages:1
Publishing Information:Washington, DC: United States Golf Association, Green Section
Question:Under separate cover I am sending a sample of Kentucky bluegrass collected late in December. I will appreciate your identifying the insects that have been depositing their eggs on the grass blades. Many of the eggs hatched within 3 days after the sample was taken. The blades bearing egg deposits eventually die.
Source of Question:West Virginia
Keywords:TIC Keywords: Aphidius testaceipes; Insect identification; Insect profile; Schizaphis graminum
Answer/Response:An examination of these specimens revealed the fact that the bluegrass was attacked by the "green bug" Toxoptera granimum Rond. The "eggs" to which you referred are the dried and swollen bodies of the aphids in which had developed the little winged parasite, Aphidins testaceipes Cress. These had hatched out into the box after the sample had been collected. This parasite is useful in controlling the green bug. The females of the green bug are capable of reproducing at temeperatures as low as 45° F or lower and it is not unusual for them to spend the winter in the crowns of plants or in bluegrass even in Washington, so that their presence in Huntington, West Virginia, is not at all remarkable. The rusty red condition of the blades of grass was caused by the feeding of the green bug. In fact, the presence of the insect is often indicated by clumps of discolored blades such as those enclosed with the specimens.
Language:English
References:0
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
USGA Green Section. 1939. Green bugs on Kentucky bluegrass. Turf Culture [II]. 1(2):p. 150.
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Web URL(s):
http://gsrpdf.lib.msu.edu/ticpdf.py?file=/1930s/1939/3904150.pdf
    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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