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CONTROL OF OVERWINTERING ADULT BROWN MARMORATED STINK BUG INJURY ON JOHN BOY PEACH, 2011

CONTROL OF OVERWINTERING ADULT BROWN MARMORATED STINK BUG INJURY ON JOHN BOY PEACH, 2011 Arthropod Management Tests 2012, Vol. 37 doi: 10.4182/amt.2012.B9 (B9) PEACH: Prunus persica (L.), ‘John Boy’ CONTROL OF OVERWINTERING ADULT BROWN MARMORATED STINK BUG INJURY ON JOHN BOY PEACH, Alan R. Biggs Tree Fruit Research and Education Center West Virginia University P. O. Box 609 Kearneysville, WV 25430 Phone: 304-876-6353 × 226 Fax: 304-876-6034 E-mail: Alan.Biggs@mail.wvu.edu Yong-Lak Park E-mail: yopark@mail.wvu.edu Brown marmorated stink bug (BMSB): Halyomorpha halys (Stål) This experiment was conducted to screen two groups of insecticides against overwintering BMSB on peach. It was conducted in a 1.0-acre portion of a 5.2-acre block of 9-yr-old trees on Lovell rootstock in Tree Fruit Research and Education Center of West Virginia University, Kearneysville, WV. Trees measured approximately 9 ft high and 11.5 ft wide and were planted at a spacing of 20 × 23 ft. The experimental area was comprised of nine rows of 11 trees/row. Each treatment was applied to one third of the area (three rows of 11 trees or 33 trees/treatment). Fruits were assessed from four replicates (n = 25/replicate) taken from the center row of each treatment. Insecticides were applied as complete sprays to both sides of the trees with a Swanson DA500A airblast sprayer which traveled at 2.6 mph and delivered a spray vol of 100 gpa. Application dates were: 27 Apr = PF (petal fall), 3 May = SS (shuck split), 10 May = SS + 7 days, 16 May = SS + 14 days, 24 May = SS + 21 days, 1 Jun = SS + 28 days, 7 Jun = SS + 35 days, and 15 Jun = SS + 42 days. Other materials applied separately to all treatments were Bravo Weather Stik, Indar, Microthiol Disperss, Nova, Captan, and Topsin-M. Feeding injury was determined on 22 Jun (SS + 49 days) by completely peeling 100 fruit/treatment (four replicates of 25 fruits) and determining the percent of fruit with any BMSB feeding injury. Monitoring of the experimental area and adjacent areas documented the presence of overwintered adult BMSB feeding and probing beginning on 12 May and continuing through mid-Jun. Egg and nymphal stages were not observed prior to sampling fruit for evaluation. BMSB injury was defined by the presence of whitish or corky areas internal to the fruit epidermis and was differentiated from other injuries caused by tarnished plant bug, other stink bug species, and plum curculio. Data were analyzed with ANOVA and mean separation was done with LSD test. All the treatment groups provided equivalent control of BMSB adults compared to untreated check (Table 1). This research was supported by industry gift(s) of pesticides and/or research funding. Table 1. Rate amt Feeding Injury Treatment/formulation product/acre Stage of peach (+ days) (% of fruit) Untreated check -- -- 73.0a Treatment group 1 8.0b Voliam Express 13.89ZC 9.0 oz + PF, SS + 7, SS + 21 + LI700 0.125% Endigo 2.7ZCX 5.5 fl oz SS, SS + 14 Baythroid XL 12.7EC 2.8 fl oz SS + 28 Lannate 29WSL 3.0 pt SS + 35, SS + 42 Treatment group 2 4.0b Voliam Express 13.89ZC 9.0 oz + PF, SS + 7, SS + 21, SS + 35 + LI700 0.125% Endigo 2.7ZCX 5.5 fl oz SS, SS + 14, SS + 28, SS + 42 Means followed by the same letter are not significantly different (LSD, P > 0.05). PF and SS indicate petal fall and shuck split stages, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

CONTROL OF OVERWINTERING ADULT BROWN MARMORATED STINK BUG INJURY ON JOHN BOY PEACH, 2011

Biggs, Alan R.; Park, Yong-Lak
Arthropod Management Tests , Volume 37 (1) – Jan 1, 2012
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Oxford University Press
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© Published by Oxford University Press.
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2155-9856
DOI
10.4182/amt.2012.B9
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Abstract

Arthropod Management Tests 2012, Vol. 37 doi: 10.4182/amt.2012.B9 (B9) PEACH: Prunus persica (L.), ‘John Boy’ CONTROL OF OVERWINTERING ADULT BROWN MARMORATED STINK BUG INJURY ON JOHN BOY PEACH, Alan R. Biggs Tree Fruit Research and Education Center West Virginia University P. O. Box 609 Kearneysville, WV 25430 Phone: 304-876-6353 × 226 Fax: 304-876-6034 E-mail: Alan.Biggs@mail.wvu.edu Yong-Lak Park E-mail: yopark@mail.wvu.edu Brown marmorated stink bug (BMSB): Halyomorpha halys (Stål) This experiment was conducted to screen two groups of insecticides against overwintering BMSB on peach. It was conducted in a 1.0-acre portion of a 5.2-acre block of 9-yr-old trees on Lovell rootstock in Tree Fruit Research and Education Center of West Virginia University, Kearneysville, WV. Trees measured approximately 9 ft high and 11.5 ft wide and were planted at a spacing of 20 × 23 ft. The experimental area was comprised of nine rows of 11 trees/row. Each treatment was applied to one third of the area (three rows of 11 trees or 33 trees/treatment). Fruits were assessed from four replicates (n = 25/replicate) taken from the center row of each treatment. Insecticides were applied as complete sprays to both sides of the trees with a Swanson DA500A airblast sprayer which traveled at 2.6 mph and delivered a spray vol of 100 gpa. Application dates were: 27 Apr = PF (petal fall), 3 May = SS (shuck split), 10 May = SS + 7 days, 16 May = SS + 14 days, 24 May = SS + 21 days, 1 Jun = SS + 28 days, 7 Jun = SS + 35 days, and 15 Jun = SS + 42 days. Other materials applied separately to all treatments were Bravo Weather Stik, Indar, Microthiol Disperss, Nova, Captan, and Topsin-M. Feeding injury was determined on 22 Jun (SS + 49 days) by completely peeling 100 fruit/treatment (four replicates of 25 fruits) and determining the percent of fruit with any BMSB feeding injury. Monitoring of the experimental area and adjacent areas documented the presence of overwintered adult BMSB feeding and probing beginning on 12 May and continuing through mid-Jun. Egg and nymphal stages were not observed prior to sampling fruit for evaluation. BMSB injury was defined by the presence of whitish or corky areas internal to the fruit epidermis and was differentiated from other injuries caused by tarnished plant bug, other stink bug species, and plum curculio. Data were analyzed with ANOVA and mean separation was done with LSD test. All the treatment groups provided equivalent control of BMSB adults compared to untreated check (Table 1). This research was supported by industry gift(s) of pesticides and/or research funding. Table 1. Rate amt Feeding Injury Treatment/formulation product/acre Stage of peach (+ days) (% of fruit) Untreated check -- -- 73.0a Treatment group 1 8.0b Voliam Express 13.89ZC 9.0 oz + PF, SS + 7, SS + 21 + LI700 0.125% Endigo 2.7ZCX 5.5 fl oz SS, SS + 14 Baythroid XL 12.7EC 2.8 fl oz SS + 28 Lannate 29WSL 3.0 pt SS + 35, SS + 42 Treatment group 2 4.0b Voliam Express 13.89ZC 9.0 oz + PF, SS + 7, SS + 21, SS + 35 + LI700 0.125% Endigo 2.7ZCX 5.5 fl oz SS, SS + 14, SS + 28, SS + 42 Means followed by the same letter are not significantly different (LSD, P > 0.05). PF and SS indicate petal fall and shuck split stages, respectively.

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Arthropod Management Tests – Oxford University Press

Published: Jan 1, 2012

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