Abstract
Single and repeated applications of MSMA (monosodium methanearsonate) with and without 2,4-D [(2,4-dichlorophenoxy)acetic acid], metribuzin [4-amino-6- tert -butyl-3-(methylthio)- as -triazine-5(4H)one], and methazole [2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidine-3,5-di-one] were evaluated for control of large crabgrass ( Digitaria sanguinalis L. Scop.) and goosegrass ( Eleusine indica L. Gaertn.). Large crabgrass was controlled satisfactorily at Griffin in 1972 and 1973 with a single application of 1.7 kg/ha of MSMA, however, repeated applications were required for similar control at Griffin in 1974 and at Blairsville in 1973 and 1974. Repeated treatments at 0.6 kg/ha resulted in satisfactory large crabgrass control in only 2 of 3 years at Griffin and 1 of 3 experiments at Blairsville. The optimum time interval between the first and second MSMA treatments (average 1973 and 1974) was 12 days for the 1.1 kg/ha rate and anytime between 12 and 19 days for the 1.7 and 2.2 kg/ha rates. There was no advantage in large crabgrass control from treatments of methazole, metribuzin, or combinations of MSMA + 2,4-D when compared with MSMA. Single applications of 1.1 kg/ha of metribuzin or 2.2 kg/ha of methazole resulted in excellent goosegrass control without causing any permanent injury to common bermudagrass [ Cynodon dactylon (L.) Pers.]. Repeated treatments of 3.3 kg/ha of MSMA were required to obtain satisfactory goosegrass control.
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Claims 7
Claim · model-written summary
A single application of 1.7 kg/ha MSMA controlled large crabgrass satisfactorily at Griffin in 1972 and 1973.
- Taxon
- large crabgrasse1
- Treatment
- single application of 1.7 kg/ha of MSMAe1
- Outcome
- controllede1
- Direction
- satisfactorilye1
- Setting
- Griffine1
Not reportedComparator
Verbatim
e1“Large crabgrass was controlled satisfactorily at Griffin in 1972 and 1973 with a single application of 1.7 kg/ha of MSMA”
Claim · model-written summary
Repeated treatments at 0.6 kg/ha gave satisfactory large crabgrass control in only 2 of 3 years at Griffin and 1 of 3 experiments at Blairsville.
- Taxon
- large crabgrasse2
- Treatment
- Repeated treatments at 0.6 kg/hae2
- Outcome
- large crabgrass controle2
- Direction
- resulted in satisfactorye2
- Value
- 2 of 3 yearse2
- Setting
- Griffine2
Not reportedComparator
Verbatim
e2“Repeated treatments at 0.6 kg/ha resulted in satisfactory large crabgrass control in only 2 of 3 years at Griffin and 1 of 3 experiments at Blairsville”
Claim · model-written summary
Methazole, metribuzin and MSMA + 2,4-D gave no advantage over MSMA alone for large crabgrass control.
Verbatim
e3“There was no advantage in large crabgrass control from treatments of methazole, metribuzin, or combinations of MSMA + 2,4-D when compared with MSMA”
Claim · model-written summary
Single applications of 1.1 kg/ha metribuzin or 2.2 kg/ha methazole gave excellent goosegrass control.
- Taxon
- goosegrasse4
- Treatment
- Single applications of 1.1 kg/ha of metribuzin or 2.2 kg/ha of methazolee4
- Outcome
- goosegrass controle4
- Direction
- resulted in excellente4
Not reportedComparator
Verbatim
e4“Single applications of 1.1 kg/ha of metribuzin or 2.2 kg/ha of methazole resulted in excellent goosegrass control without causing any permanent injury to common bermudagrass”
Claim · model-written summary
Single applications of 1.1 kg/ha metribuzin or 2.2 kg/ha methazole caused no permanent injury to common bermudagrass.
- Taxon
- common bermudagrasse4
- Treatment
- Single applications of 1.1 kg/ha of metribuzin or 2.2 kg/ha of methazolee4
- Outcome
- permanent injurye4
- Direction
- without causinge4
Not reportedComparator
Verbatim
e4“Single applications of 1.1 kg/ha of metribuzin or 2.2 kg/ha of methazole resulted in excellent goosegrass control without causing any permanent injury to common bermudagrass”
Claim · model-written summary
Repeated treatments of 3.3 kg/ha MSMA were required for satisfactory goosegrass control.
- Taxon
- goosegrasse5
- Treatment
- Repeated treatments of 3.3 kg/ha of MSMAe5
- Outcome
- goosegrass controle5
- Direction
- were required to obtain satisfactorye5
Not reportedComparator
Verbatim
e5“Repeated treatments of 3.3 kg/ha of MSMA were required to obtain satisfactory goosegrass control”
Claim · model-written summary
The optimum interval between the first and second MSMA treatments was 12 days for the 1.1 kg/ha rate.
Verbatim
e6“The optimum time interval between the first and second MSMA treatments (average 1973 and 1974) was 12 days for the 1.1 kg/ha rate”
e7“were evaluated for control of large crabgrass ( Digitaria sanguinalis L. Scop.) and goosegrass ( Eleusine indica L. Gaertn.)”
The same questions in other papers
Methazole · crop injury · Cynodon dactylon (Bermuda grass)Positive and negative results
1 in the opposite direction
- negative
metribuzin · crop injury · Cynodon dactylon (Bermuda grass)Positive and negative results
2 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- positive
7 papers more in this group
See all 11 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.