Abstract
ABSTRACT This experiment was carried out between 2018 and 2019 at the experimental site of National Cereals Research Institute’s identified hot spot (Edozhigi) for Africa rice gall midge (0rseolia oryzivora) infestation in Nigeria. Edozhigi in Niger State is within the southern Guinea savanna agro-ecological zone at latitude 09°45' N, longitude 06°07' E, to test integrated inluence of habitat manipulation, lambda-cyhalothrin and carbofuran on population dynamics of 0. oryzivora in relation to its parasitoids on rice. The treatments were arranged in split-plot and laid out in a RCBD with three replicates. Data were collected on number of tiller / stand, plant height, days to 50 percent flowering, percent incidence, percent severity, percentage parasitism of 0. oryzivora, panicle per meter square, grains per panicle and yield of rice. Data collected were subjected to Analysis of Variance and significant means were separated using Student Newman Keuls Test, (SNK) at 5 % probability. The result showed that Rice plots treated with P. scrubiculatum + 0.38L/ha lambda-cyhalotrin +3.75kg/ha carbofuran had lower incidence (2.36) and severity (1.54) of 0. oryzivora compared with incidence (7.99) and severity (7.40) respectively found in untreated plots (control). It also had significantly higher yield (3263.95kg/ha) compared with the yield (2688.28kg/ha) in control plots. In conclusion, having P. scrobiculatum at boarder of net plots enhanced number of parasitoids and reduced attack of rice by 0. oryzivora. Integration of habitat modification with insecticide application offers better protection of rice against O. oryzivora. Key words: Habitat P. scrobiculatum, Infestation, Modification, Galls.
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Claims 6
Claim · model-written summary
Combined treatment lowered gall midge incidence to 2.36 versus 7.99 in control plots.
- Taxon
- Rice
Oryza sativae0 - Treatment
- P. scrubiculatum + 0.38L/ha lambda-cyhalotrin +3.75kg/ha carbofurane0
- Interactor
- 0. oryzivorae0pest
- Outcome
- incidencee0
- Direction
- lowere0
- Value
- 2.36e0
- Qualifier
- 7.99e0
- Comparator
- untreated plots (control)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The result showed that Rice plots treated with P. scrubiculatum + 0.38L/ha lambda-cyhalotrin +3.75kg/ha carbofuran had lower incidence (2.36) and severity (1.54) of 0. oryzivora compared with incidence (7.99) and severity (7.40) respectively found in untreated plots (control). It also had significantly higher yield (3263.95kg/ha) compared with the yield (2688.28kg/ha) in control plots.”
Claim · model-written summary
Combined treatment lowered gall midge severity to 1.54 versus 7.40 in control plots.
- Taxon
- RiceOryza sativae0
- Treatment
- P. scrubiculatum + 0.38L/ha lambda-cyhalotrin +3.75kg/ha carbofurane0
- Interactor
- 0. oryzivorae0pest
- Outcome
- severitye0
- Direction
- lowere0
- Value
- 1.54e0
- Qualifier
- 7.40e0
- Comparator
- untreated plots (control)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The result showed that Rice plots treated with P. scrubiculatum + 0.38L/ha lambda-cyhalotrin +3.75kg/ha carbofuran had lower incidence (2.36) and severity (1.54) of 0. oryzivora compared with incidence (7.99) and severity (7.40) respectively found in untreated plots (control). It also had significantly higher yield (3263.95kg/ha) compared with the yield (2688.28kg/ha) in control plots.”
Claim · model-written summary
Combined treatment raised rice yield to 3263.95kg/ha versus 2688.28kg/ha in control plots.
- Taxon
- RiceOryza sativae0
- Treatment
- P. scrubiculatum + 0.38L/ha lambda-cyhalotrin +3.75kg/ha carbofurane0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 3263.95kg/hae0
- Qualifier
- 2688.28kg/hae0
- Comparator
- control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The result showed that Rice plots treated with P. scrubiculatum + 0.38L/ha lambda-cyhalotrin +3.75kg/ha carbofuran had lower incidence (2.36) and severity (1.54) of 0. oryzivora compared with incidence (7.99) and severity (7.40) respectively found in untreated plots (control). It also had significantly higher yield (3263.95kg/ha) compared with the yield (2688.28kg/ha) in control plots.”
Claim · model-written summary
P. scrobiculatum at plot borders enhanced parasitoid numbers.
- Taxon
- riceOryza sativae0
- Treatment
- P. scrobiculatum at boarder of net plotse0
- Interactor
- parasitoidse0biocontrol_agent
- Outcome
- number of parasitoidse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“having P. scrobiculatum at boarder of net plots enhanced number of parasitoids and reduced attack of rice by 0. oryzivora.”
Claim · model-written summary
P. scrobiculatum at plot borders reduced gall midge attack on rice.
- Taxon
- riceOryza sativae0
- Treatment
- P. scrobiculatum at boarder of net plotse0
- Interactor
- 0. oryzivorae0pest
- Outcome
- attack of rice by 0. oryzivorae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“having P. scrobiculatum at boarder of net plots enhanced number of parasitoids and reduced attack of rice by 0. oryzivora.”
Claim · model-written summary
Integrating habitat modification and insecticide application offers better rice protection against gall midge.
- Taxon
- riceOryza sativae0
- Interactor
- O. oryzivorae0pest
- Outcome
- better protection of rice against O. oryzivorae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Integration of habitat modification with insecticide application offers better protection of rice against O. oryzivora.”
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See all 24 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.