Abstract
The sugarcane whitefly, Aleurolobus barodensis Mask in recent years has assumed serious proportions on sugarcane not only in Andhra Pradesh but also in many parts of the sugarcane growing areas in India. It is one of the serious sucking pests on sugarcane ratoon crop under water-logged as well as drought conditions and also in alkaline soils under low manuring and where the ratoons are left uncared for. The nymphs of whiteflies suck the sap from the undersurface of the leaves and the severe whitefly infestation may result in reduction in cane yield as well as sugar recovery. As the information on new insecticides is meager, the present investigation on the efficacy certain management practices including insecticides against whitefly in sugarcane was carried out from 2009 to 2011 at Regional Agricultural Research Station, Anakapalle Andhra Pradesh, India. The results revealed that the removal of infested leaves + spraying of imidacloprid @ 0.3ml/lt along with 2% urea significantly reduced the whitefly population (6 nymphsapuparia/10sq.mt) compared to untreated control (177 nymphsapuparia/10sq mt) by recording highest per cent mortality of whitefly over control (96.60 %) and also recorded highest per cent sucrose (19.60%) and cane yield (84.47t/ha) as compared to untreated control (17.1% ; 72.15t/ha). The next best treatments were removal infested leaves + neem based pesticide, Azadirachtin @ 4 g a.i/ha (0.0004%) at 5 ml/lt (81.83%) and removal infested leaves + dimethoate @2ml/lt (80.86%) which were on par with each other.
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Claims 7
Claim · model-written summary
Removing infested leaves and spraying imidacloprid with urea significantly reduced the sugarcane whitefly population compared with untreated control.
Verbatim
e0“The sugarcane whitefly, Aleurolobus barodensis Mask in recent years has assumed serious proportions on sugarcane”
e1“removal of infested leaves + spraying of imidacloprid @ 0.3ml/lt along with 2% urea significantly reduced the whitefly population (6 nymphsapuparia/10sq.mt) compared to untreated control (177 nymphsapuparia/10sq mt)”
Claim · model-written summary
The imidacloprid and urea treatment gave the highest whitefly mortality, 96.60%, over control.
Verbatim
e0“The sugarcane whitefly, Aleurolobus barodensis Mask in recent years has assumed serious proportions on sugarcane”
e1“removal of infested leaves + spraying of imidacloprid @ 0.3ml/lt along with 2% urea significantly reduced the whitefly population (6 nymphsapuparia/10sq.mt) compared to untreated control (177 nymphsapuparia/10sq mt)”
e2“by recording highest per cent mortality of whitefly over control (96.60 %)”
Claim · model-written summary
The imidacloprid and urea treatment gave the highest sucrose content, 19.60%, compared with untreated control.
Verbatim
e0“The sugarcane whitefly, Aleurolobus barodensis Mask in recent years has assumed serious proportions on sugarcane”
e1“removal of infested leaves + spraying of imidacloprid @ 0.3ml/lt along with 2% urea significantly reduced the whitefly population (6 nymphsapuparia/10sq.mt) compared to untreated control (177 nymphsapuparia/10sq mt)”
e3“recorded highest per cent sucrose (19.60%) and cane yield (84.47t/ha) as compared to untreated control (17.1% ; 72.15t/ha)”
Claim · model-written summary
The imidacloprid and urea treatment gave the highest cane yield, 84.47 t/ha, compared with untreated control.
Verbatim
e0“The sugarcane whitefly, Aleurolobus barodensis Mask in recent years has assumed serious proportions on sugarcane”
e1“removal of infested leaves + spraying of imidacloprid @ 0.3ml/lt along with 2% urea significantly reduced the whitefly population (6 nymphsapuparia/10sq.mt) compared to untreated control (177 nymphsapuparia/10sq mt)”
e3“recorded highest per cent sucrose (19.60%) and cane yield (84.47t/ha) as compared to untreated control (17.1% ; 72.15t/ha)”
Claim · model-written summary
Removing infested leaves with neem-based pesticide and azadirachtin gave 81.83% whitefly mortality, the next best result.
- Taxon
- sugarcanee0
- Treatment
- removal infested leaves + neem based pesticide, Azadirachtin @ 4 g a.i/ha (0.0004%) at 5 ml/lte4
- Interactor
- Aleurolobus barodensisAleurolobus barodensise0pest
- Outcome
- per cent mortality of whiteflye2
- Direction
- next beste4
- Value
- 81.83%e4
Not reportedComparator
Verbatim
e0“The sugarcane whitefly, Aleurolobus barodensis Mask in recent years has assumed serious proportions on sugarcane”
e2“by recording highest per cent mortality of whitefly over control (96.60 %)”
e4“The next best treatments were removal infested leaves + neem based pesticide, Azadirachtin @ 4 g a.i/ha (0.0004%) at 5 ml/lt (81.83%) and removal infested leaves + dimethoate @2ml/lt (80.86%) which were on par with each other”
Claim · model-written summary
Removing infested leaves with dimethoate gave 80.86% whitefly mortality, the next best result.
- Taxon
- sugarcanee0
- Treatment
- removal infested leaves + dimethoate @2ml/lte4
- Interactor
- Aleurolobus barodensisAleurolobus barodensise0pest
- Outcome
- per cent mortality of whiteflye2
- Direction
- next beste4
- Value
- 80.86%e4
Not reportedComparator
Verbatim
e0“The sugarcane whitefly, Aleurolobus barodensis Mask in recent years has assumed serious proportions on sugarcane”
e2“by recording highest per cent mortality of whitefly over control (96.60 %)”
e4“The next best treatments were removal infested leaves + neem based pesticide, Azadirachtin @ 4 g a.i/ha (0.0004%) at 5 ml/lt (81.83%) and removal infested leaves + dimethoate @2ml/lt (80.86%) which were on par with each other”
Claim · model-written summary
The neem-based and dimethoate treatments were on par with each other for whitefly mortality.
Verbatim
e0“The sugarcane whitefly, Aleurolobus barodensis Mask in recent years has assumed serious proportions on sugarcane”
e2“by recording highest per cent mortality of whitefly over control (96.60 %)”
e4“removal infested leaves + neem based pesticide, Azadirachtin @ 4 g a.i/ha (0.0004%) at 5 ml/lt (81.83%) and removal infested leaves + dimethoate @2ml/lt (80.86%) which were on par with each other”
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8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.