Abstract
AbstractSpittlebugs are the main pest of tropical pastures and Marandu palisade grass (Urochloa brizantha cv. Marandu) is the most representative cultivated pasture in the tropics. Our objective was to characterize Marandu palisade grass responses subjected to Mahanarva (Hemiptera: Cercopidae) attack and to estimate the losses in terms of beef production from pasture-based systems. A set of five experiments were carried out. Three consecutive years of monitoring showed that Mahanarva spittlebugs increased their abundance after first rains with three to four peaks throughout the wet season. A decrease of 66% on herbage yield was observed in the greenhouse trial, with an average decrease of 61% on pools of calcium, magnesium, phosphorus, sulfur, potassium, crude protein, neutral-detergent fiber and in vitro digestible dry matter of Marandu palisade grass. Results from field experiments corroborated with greenhouse trial showing decreases on herbage yield varying from 31 to 43% depending on level of fertilization and grazing severity of Marandu palisade grass. Finally, an unprecedented 154-ha field experiment indicated that Mahanarva decreases 74% the beef productivity (i.e. kg body weight ha−1) of Nellore heifers grazing Marandu palisade grass.
Funder
Fundação de Amparo á Pesquisa do Estado de São Paulo
Publisher
Springer Science and Business Media LLC
Reference61 articles.
1. USDA. Livestock and Poultry: World Markets and Trade. https://apps.fas.usda.gov/psdonline/circulars/livestock_poultry.pdf (2019).
2. CEPEA. GDP from Brazilian Agribusiness from 1996 to 2018. https://www.cepea.esalq.usp.br/br/pib-do-agronegocio-brasileiro.aspx (2019).
3. ABIEC. Beef Report Brazilian Livestock Profile. https://www.brazilianbeef.org.br/download/sumarioingles2019.pdf (2019).
4. Penati, M. A. et al. Effects of post-grazing forage mass on a beef cattle grazing system on Tanzânia grass pastures. R. Bras. Zootec. 43, 296–300. https://doi.org/10.1590/S1516-35982014000600003 (2014).
5. Congio, G. F. S. Characterization and Quantification of Damage Caused by Adult Spittlebugs of the Genus Mahanarva sp. (Hemiptera: Cercopidae) in Brachiaria brizantha cv. Marandu. Dissertation, University of São Paulo. https://www.teses.usp.br/teses/disponiveis/11/11139/tde-20102010-150906/en.php (2010).
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献