Sequential sampling plans and economic injury levels for Empoasca kraemeri on common bean crops at different technological levels

Sequential sampling plans and economic injury levels for Empoasca kraemeri on common bean crops at different technological levels

BACKGROUND Empoasca kraemeri is an important pest on common bean crops at different technological levels. However, for this pest on this crop, economic injury levels have not yet been determined and plan for sequential sampling plans has not yet been developed. Thus, the objectives of this research...

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Published in:Pest management science Vol. 74; no. 2; pp. 398 - 405
Main Authors: de Moura, Marcelo Fialho, Lopes, Mayara Cristina, Pereira, Renata Ramos, Parish, Jorgiane Benevenute, Chediak, Mateus, de Paulo Arcanjo, Lucas, das Graças do Carmo, Daiane, Picanço, Marcelo Coutinho
Format: Journal Article
Language:English
Published: Chichester, UK John Wiley & Sons, Ltd 01-02-2018
Wiley Subscription Services, Inc
Subjects:
Adults
Animals
Chemical attack
common bean
Crops
Decisions
decision‐making process
Economics
Empoasca
Empoasca kraemeri
Grain
Hemiptera - physiology
Injury prevention
Insect Control - methods
Pests
Phaseolus - growth & development
Sampling
Sequential sampling
sequential sampling plan
sequential sampling plan
common bean
Empoasca kraemeri
decision-making process
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Summary:BACKGROUND Empoasca kraemeri is an important pest on common bean crops at different technological levels. However, for this pest on this crop, economic injury levels have not yet been determined and plan for sequential sampling plans has not yet been developed. Thus, the objectives of this research were to develop E. kraemeri sequential sampling plans and to determine economic injury levels in the common bean at different crop technological levels. RESULTS Common bean plants tolerate low attack intensities of this pest (up to 1 adult plant‐1). However, with an increase in attacks, there is a reduction in grain production by the plants. The economic injury levels were 0.48, 0.39 and 0.35 adults sample‐1 (leaf beating on a tray) for crops with low (1200 kg ha‐1), medium (1800 kg ha‐1) and high (2400 kg ha‐1) technological levels, respectively. Sequential sampling plans and the standardized plan produced similar decisions. However, in these decisions there was a time saving of more than 60% compared with the standardized plan. CONCLUSION All three economic injury levels determined and the sequential sampling plans developed in this study are suitable for incorporation into integrated management programs for common bean pests because they can be used by farmers operating at various technological levels to make adequate and rapid decisions. © 2017 Society of Chemical Industry Economic injury levels and sequential sampling plans determined can be incorporated into IPM because they are suitable for farmers of various technological levels and for making correct and fast decisions.
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ISSN:1526-498X
1526-4998
DOI:10.1002/ps.4720