NDLI: Management of Rice Bug, Leptocorisa oratorius (F.) (Hemiptera: Alydidae) Using White Muscardine Fungus Beauveria bassiana (Bals.) Vuill. In Upland Rice + Legume Cropping Systems

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Management of Rice Bug, Leptocorisa oratorius (F.) (Hemiptera: Alydidae) Using White Muscardine Fungus Beauveria bassiana (Bals.) Vuill. In Upland Rice + Legume Cropping Systems

Content Provider	Semantic Scholar
Author	Tuan, Pio P.
Copyright Year	2014
Abstract	Field experiment was conducted to evaluate the development and infection of B. bassiana on L. oratorius in rice + legume intercropping system. Field population of L. oratorius was significantly affected by B. bassiana application. Highest population at 7 DAS was recorded in the control treatment with 2.73 bugs per linear meter followed in the decreasing order of population number by 1 (1.0 x 10 P P conidia/ha), dose 2 (1.0 x 10 P P conidia/ha) and chemical insecticide (malathion, recommended rate) with 2.26; 1.39 and 1.15 bugs per linear meter. No significant differences were observed in field bug population as influenced by B. bassiana, 15 DAS. Population of L. oratorius as influenced by B. bassiana application at different rice-based cropping systems was not significant 7 DAS but significant at 15 DAS. Bug population was highest in untreated (control) monoculture rice with 3.48 bugs per linear meter. Lowest population of bugs in the field was observed in R+Bb and R+Pn+Mal treatment. Application of B. bassiana as myco-insecticide at the rate of 1.0 x 10 P P conidia/ha regulated the population of L. oratorius in rice and did not influence the extent of damage caused by L. oratorius on rice grains. Intercropping system had less influence on the development and infection of B. bassiana against L. oratorius but enhanced the management of insect pests affecting upland rice including L. oratorius. Likewise, the influence of B. bassiana and that of B. bassiana x cropping systems interaction on the damage on grains caused by the bug were not significant. The results revealed that the use of B. bassiana as microbial insecticide against L. oratorius under upland rice environment did not give a significant protection against L. oratorius: instead intercropping rice with legumes lessened may have bug damage on rice grains.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.ijiset.com/v1s10/IJISET_V1_I10_95.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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