Abstract
Lime-sulfur solution and resin wash are two of the most commonly recommended insecticides for the control of the citrus black scale, Parlatoria zizyphus (Lucas). However, their value remains to be investigated carefully. Preliminary tests showed that 0.3, 0.5, and 1°B'e lime sulfur gave practically no control of the adult female scales. Resin wash prepared with Na_2 CO_3 or local potash which contains primarily K_2CO_3 gave different results: those prepared with Na_2CO_3 and diluted to 30, 20 and 10 times the stoek solution killed 40%, 56%, and 78% of the scales respectively, and those prepared with local potash and diluted to 10 times the stock solution killed 60% of the scales, whereas more diluted solution of the latter preparation showed very low killing effect. The phytocidal effect of these preparations sprayed in June and July in Fooehow was found to be very slight.
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Claims 7
Claim · model-written summary
Lime-sulfur at 0.3, 0.5 and 1 degree Baume gave practically no control of adult female citrus black scales.
- Treatment
- lime sulfure1
- Interactor
- PARLATORIA ZIZYPHUSt0pest
- Outcome
- control of the adult female scalese1
- Direction
- practically noe1
CitrusNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CONTROL OF THE CITRUS BLACK SCALE, PARLATORIA ZIZYPHUS”
e1“Preliminary tests showed that 0.3, 0.5, and 1°B'e lime sulfur gave practically no control of the adult female scales”
Claim · model-written summary
Resin wash prepared with Na_2CO_3 and diluted 30-fold killed 40% of citrus black scales.
- Treatment
- Na_2CO_3e2
- Interactor
- PARLATORIA ZIZYPHUSt0pest
- Outcome
- killede2
- Direction
- killede2
- Value
- 40%e2
- Qualifier
- diluted to 30, 20 and 10 timese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CONTROL OF THE CITRUS BLACK SCALE, PARLATORIA ZIZYPHUS”
e2“those prepared with Na_2CO_3 and diluted to 30, 20 and 10 times the stoek solution killed 40%, 56%, and 78% of the scales respectively”
Claim · model-written summary
Resin wash prepared with Na_2CO_3 and diluted 20-fold killed 56% of citrus black scales.
- Treatment
- Na_2CO_3e2
- Interactor
- PARLATORIA ZIZYPHUSt0pest
- Outcome
- killede2
- Direction
- killede2
- Value
- 56%e2
- Qualifier
- diluted to 30, 20 and 10 timese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CONTROL OF THE CITRUS BLACK SCALE, PARLATORIA ZIZYPHUS”
e2“those prepared with Na_2CO_3 and diluted to 30, 20 and 10 times the stoek solution killed 40%, 56%, and 78% of the scales respectively”
Claim · model-written summary
Resin wash prepared with Na_2CO_3 and diluted 10-fold killed 78% of citrus black scales.
- Treatment
- Na_2CO_3e2
- Interactor
- PARLATORIA ZIZYPHUSt0pest
- Outcome
- killede2
- Direction
- killede2
- Value
- 78%e2
- Qualifier
- diluted to 30, 20 and 10 timese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CONTROL OF THE CITRUS BLACK SCALE, PARLATORIA ZIZYPHUS”
e2“those prepared with Na_2CO_3 and diluted to 30, 20 and 10 times the stoek solution killed 40%, 56%, and 78% of the scales respectively”
Claim · model-written summary
Local potash resin wash diluted 10-fold killed 60% of citrus black scales.
- Treatment
- local potashe3
- Interactor
- PARLATORIA ZIZYPHUSt0pest
- Outcome
- killede3
- Direction
- killede3
- Value
- 60%e3
- Qualifier
- diluted to 10 timese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CONTROL OF THE CITRUS BLACK SCALE, PARLATORIA ZIZYPHUS”
e3“those prepared with local potash and diluted to 10 times the stock solution killed 60% of the scales”
Claim · model-written summary
More diluted local potash resin wash showed very low killing effect on citrus black scales.
- Treatment
- more diluted solutione4
- Interactor
- PARLATORIA ZIZYPHUSt0pest
- Outcome
- killing effecte4
- Direction
- very lowe4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CONTROL OF THE CITRUS BLACK SCALE, PARLATORIA ZIZYPHUS”
e4“whereas more diluted solution of the latter preparation showed very low killing effect”
Claim · model-written summary
Resin wash preparations sprayed in June and July in Fooehow had a very slight phytocidal effect on citrus.
- Treatment
- these preparations sprayed in June and Julye5
- Outcome
- phytocidal effecte5
- Direction
- very slighte5
- Setting
- Fooehowe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CONTROL OF THE CITRUS BLACK SCALE, PARLATORIA ZIZYPHUS”
e5“The phytocidal effect of these preparations sprayed in June and July in Fooehow was found to be very slight”
The same questions in other papers
sulfur atom · pest · CitrusResults agree
1 paper in the same direction as this paper
- no effect
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.