Development of Binomial Sequential Sampling Plans for Sugarcane Aphid (Hemiptera: Aphididae) in Commercial Grain Sorghum
- 13 April 2020
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 113 (4), 1990-1998
- https://doi.org/10.1093/jee/toaa064
Abstract
The sugarcane aphid (Melanaphis sacchari Zehntner) is a significant economic pest of grain sorghum (Sorghum bicolor (L.) Moench) in the Southern United States. Current nominal and research-based economic thresholds are based on estimates of mean aphids per leaf. Because enumerating aphids per leaf is potentially time consuming, binomial sequential sampling plans for M. sacchari were developed that allow users to quickly classify the economic status of field populations and determine when an economic threshold has been exceeded. During 2016 and 2017, counts of M. sacchari were recorded from 281 sampling events in 140 sorghum fields located in six states (Oklahoma, Kansas, Texas, Arkansas, Louisiana, Mississippi) . Regression analysis was used to describe the relationships between the mean M. sacchari density per two-leaf sample and proportion of plants infested with one or more aphids. Tally thresholds of T50 and T100 aphids per two-leaf sample were selected based on goodness of fit and practicality. Stop lines for both tally thresholds were developed for selected economic thresholds using Wald’s sequential probability ratio test. Model validations using an additional 48 fields demonstrated that reliable classification decisions could be made with an average of 11 samples regardless of location. This sampling system, when adopted, can allow users to easily and rapidly determine when M. sacchari infestations need to be treated.Keywords
Funding Information
- U.S. Department of Agriculture
- National Institute of Food and Agriculture
- Crop Protection and Pest Management Applied Research and Development Program (2015-7006-24259)
- Extension Implementation Program (2017-70006-27282)
This publication has 31 references indexed in Scilit:
- A Visual Sense of NumberCurrent Biology, 2008
- Enumerative and Binomial Sequential Sampling Plans for Soybean Aphid (Homoptera: Aphididae) in SoybeanJournal of Economic Entomology, 2004
- Fixed Precision Sequential Sampling Plans for the Greenbug and Bird Cherry-Oat Aphid (Homoptera: Aphididae) in Winter WheatJournal of Economic Entomology, 2003
- Melanaphis sacchari (Homoptera: Aphididae), a Sugarcane Pest New to LouisianaThe Florida Entomologist, 2001
- Validation of Arthropod Sampling Plans Using a Resampling Approach: Software and AnalysisAmerican Entomologist, 1997
- Binomial sampling plans for estimating and classifying population density of adult Bemisia tabaci in cottonEntomologia Experimentalis et Applicata, 1996
- Binomial Sequential Sampling Plans and Decision Support Algorithms for Managing the Russian Wheat Aphid (Homoptera: Aphididae) in Small GrainsJournal of Economic Entomology, 1994
- Sampling Insect Populations for the Purpose of IPM Decision MakingAnnual Review of Entomology, 1992
- Insects and Mites Associated with Sugarcane in FloridaThe Florida Entomologist, 1988
- Growth Stages of Sorghum [Sorghum bicolor, (L.) Moench.]1Agronomy Journal, 1972