Economic Injury Levels in Theory and Practice

Pedigo, Larry P.; Hutchins, Scott H.; Higley, Leon G.

doi:10.1146/annurev.en.31.010186.002013

Cited by 596 publications

(254 citation statements)

References 51 publications

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“…Obviously, in addition to final product prices and production costs, many factors interfere with the economic injury level determination, as discussed by Pedigo et al (1986). Among these are plant age when injured, injury intensity, variety, and environmental conditions.…”

Section: Resultsmentioning

confidence: 99%

Economic injury level for sugarcane caused by the spittlebug Mahanarva fimbriolata (Stål) (Hemiptera:Cercopidae)

Dinardo-Miranda¹,

Pivetta

Fracasso

2008

Sci. agric. (Piracicaba, Braz.)

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The sugarcane spittlebug, Mahanarva fimbriolata (Stål), is currently one of the most important pests of the sugarcane crop in Brazil. In spite of its economic importance, advances in the management of this pest have been limited by the lack of information on the economic injury level. In this study, the economic injury level for M. fimbriolata was estimated in a field experiment, over areas harvested in September, applying thiamethoxam at 200 g a.i. ha -1 or imidacloprid at 720 g a.i. ha -1 . In one of the experiments, insecticide applications were made at pest infestation values of 4.2 (11/12/04), 7.1 (01/11/05), or 16.3 (01/18/05) insects m -1 , and in experiment 2 when pest populations were 5.6 (11/12/04), 8.5 (01/11/05), or 15.3 (01/11/05) insects m -1 . Control plots without insecticide were maintained. After the applications, spittlebug infestations were estimated monthly, and the experiments were harvested in September 2005. Spittlebug control with the application of insecticides resulted in stalk and sugar yield increases in relation to the control, for both experiments. Applications performed under smaller infestations resulted in higher yields than applications made under higher populations. There were no differences between insecticides in one of the experiments; in the other, however, thiamethoxan contributed to greater yield increases than imidacloprid. Insecticide applications made under lower infestations resulted in greater profits. Regression analyses allowed the estimation of the pest economic injury level to be between 2 to 3 insects m -1 for the conditions of this experiment.

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Section: Resultsmentioning

confidence: 99%

Economic injury level for sugarcane caused by the spittlebug Mahanarva fimbriolata (Stål) (Hemiptera:Cercopidae)

Dinardo-Miranda¹,

Pivetta

Fracasso

2008

Sci. agric. (Piracicaba, Braz.)

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“…Além dos métodos de controle e da biologia da praga, outro fator importante na elaboração de um programa de manejo integrado da broca-da-figueira é a determinação dos níveis de dano e de controle (Pedigo et al, 1986) dessa praga, para racionalizar o uso de inseticidas. É preciso conhecer a dinâmica populacional da praga no campo e o nível populacional da praga capaz de causar redução na produção, para que se possa justificar o uso de métodos de controle (Pedigo et al, 1986).…”

Section: Effect Of Fig Tree Borer Injury On Fruit Production and Popuunclassified

“…É preciso conhecer a dinâmica populacional da praga no campo e o nível populacional da praga capaz de causar redução na produção, para que se possa justificar o uso de métodos de controle (Pedigo et al, 1986).…”

Section: Effect Of Fig Tree Borer Injury On Fruit Production and Popuunclassified

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Danos causados pela broca-da-figueira na produção de frutos e flutuação populacional dos adultos

Fadini

Filho²,

Antunes

2003

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o efeito dos danos causados por Azochis gripusalis Walker, 1859 (Lepidoptera: Pyralidae) na produção da figueira (Ficus carica L.) e o efeito de fatores climáti-cos sobre a flutuação populacional dos adultos no Estado de Minas Gerais. Quarenta plantas foram utilizadas para determinar o nível de dano, coletando-se os adultos semanalmente com armadilha luminosa. O aumento na porcentagem de ramos broqueados afetou o peso e o número de frutos produzidos. A redução na produção e a necessidade de controle fitossanitário ocorrem aos 10% e aos 40% de dano, respectivamente. A maior ocorrência da praga foi entre 19 de dezembro e 15 de maio. A temperatura foi o fator de maior influência no aumento populacional.Termos para indexação: Azochis gripusalis, Ficus carica, dinâmica populacional, manejo integrado de praga. Effect of fig tree borer injury on fruit production and population dynamic of adultsAbstract -The objective of this work was to evaluate the injury of

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“…The economic threshold is simply the operational criteria for administering pest control action (Higley and Pedigo, 1996). The generalised form of the EIL described by Pedigo et al (1986) is:…”

Section: Defining the Economic Thresholdmentioning

confidence: 99%

Alternative specifications and extensions of the economic threshold concept and the control of livestock pests

Davis¹,

Tisdell²

Economics of Pesticides, Sustainable Food Production, and Organic Food Markets

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Economic Injury Levels in Theory and Practice

Cited by 596 publications

References 51 publications

Economic injury level for sugarcane caused by the spittlebug Mahanarva fimbriolata (Stål) (Hemiptera:Cercopidae)

Economic injury level for sugarcane caused by the spittlebug Mahanarva fimbriolata (Stål) (Hemiptera:Cercopidae)

Danos causados pela broca-da-figueira na produção de frutos e flutuação populacional dos adultos

Alternative specifications and extensions of the economic threshold concept and the control of livestock pests

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