Abstract
Rice (Oryza sativa) is one of the most important cereal crops with a diverse set of pests and natural enemies. Rice fields often support a high diversity of arthropods which contribute significantly to productivity. This diversity is frequently threatened due to indiscriminate applications of pesticides. Our aim was to emphasize on the predator diversity in agrochemical exposed rice field as well as on the impact of surrounding vegetation on beneficial insect diversity. Natural enemies’ data were recorded from randomly selected 10 quadrates by visual observation from each treatment. A total of 5,590 individuals of predators were observed during the study period which included 27 species belonging to 16 families from five orders of arthropods during the kharif season of rice. Statistically, there were no significant differences between the population of general natural enemies such as Odonata, Coleoptera, Hymenoptera, and Araneae in plots with insecticide and control during the different growth stages of rice cultivation. Diversity indices were almost similar in fields where pesticide was sprayed and not sprayed. Our study concluded that natural enemies are conserved by ensuring crop heterogeneity, growing insect-friendly plants (with high levels of nectar and pollen) as border crops, and judicious application of granule insecticide like cartap hydrochloride in a rice agro-ecosystem.
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Claims 4
Claim · model-written summary
The rice fields contained 5,590 predators in 27 species.
- Taxon
- rice
Oryza sativae0 - Outcome
- individuals of predatorse0
- Value
- 5,590e0
- Qualifier
- 27 species belonging to 16 families from five orders of arthropodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A total of 5,590 individuals of predators were observed during the study period which included 27 species belonging to 16 families from five orders of arthropods during the kharif season of rice.”
Claim · model-written summary
Natural enemy populations did not differ significantly between insecticide and control plots.
- Taxon
- riceOryza sativae0
- Treatment
- plots with insecticidee0
- Outcome
- population of general natural enemiese0
- Direction
- no significant differencese0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant differences between the population of general natural enemies such as Odonata, Coleoptera, Hymenoptera, and Araneae in plots with insecticide and control during the different growth stages of rice cultivation.”
Claim · model-written summary
Predator diversity indices were similar in sprayed and unsprayed fields.
- Taxon
- RiceOryza sativat0
- Treatment
- pesticide was sprayede0
- Outcome
- Diversity indicese0
- Direction
- almost similare0
- Comparator
- not sprayede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diversity indices were almost similar in fields where pesticide was sprayed and not sprayed.”
t0“Rice”
Claim · model-written summary
The authors recommend crop heterogeneity, flowering border crops, and judicious granular insecticide to conserve natural enemies.
- Taxon
- riceOryza sativae0
- Outcome
- natural enemies are conservede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“natural enemies are conserved by ensuring crop heterogeneity, growing insect-friendly plants (with high levels of nectar and pollen) as border crops, and judicious application of granule insecticide like cartap hydrochloride in a rice agro-ecosystem.”
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See all 6 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.