Arthropod Management Tests, 2015, 1–2
PEPPER (BELL): Capsicum annuum L., ‘Seminis 8302’
doi: 10.1093/amt/tsv124 (E64)
Control of Broad Mite on ‘Bell’ Pepper With Labeled and Experimental Insecticides, 2013* Philip A. Stansly1 and Barry Kostyk University of Florida/ IFAS, Southwest Florida Res. and Ed. Center, 2686 State Rd. 29 North, Immokalee, FL 341429515, Phone: (239) 658-3427, Fax: (239) 658-3469 (
[email protected];
[email protected]) and 1Corresponding author, e-mail:
[email protected] Subject Editor: Mark Abney Pepper | Capsicum annuum
cis-4-(ethoxycarbonyloxy)-8-methoxy-3-(2,5-xylyl)-1-azaspiro[4.5]dec-3-en-2-one; Methyl Esters of C16-C18 Fatty acids polyalkyleneoxide modified polydimethylsiloxane; alkylphenol ethoxylate; Extract of Chenopodium ambrosioides near ambrosioides; 4-chloro-3-ethyl-1-methyl-N-[[4-(4-methylphenoxy)phenyl]methyl]-1H-pyrazole-5-carboxamide; (Butyl)-7-((2,6-dideoxy-40-2,6dideoxy3-0-methyl-x-L-arabinohexopyran osyl)-3-0-methyl-x-L-arabino-hexopyranosyl)oxy)-50 c6,600 ,7,10,11,14,15,17a,20,20a,20bdodecanydro-20b-dihydroxy-50 6,8,19-tetramethylsprio (11,16-methano-2H,13H,17H-furo (4,3,2-pg)(2,6) benzodioxacyclootadecin Broad mite is a destructive pest of peppers and other crops in south Florida and elsewhere, causing malformed leaves, aborted blooms, and russeted fruit. For this trial at the Southwest Florida Research and Education Center in Immokalee, FL, during Fall 2013, four raised bed were prepared with 1,000 lb/acre granular 10-2-10 fertilizer incorporated, 100 lb/acre MBC 50 shanked in, and two drip tubes with 8-inch emitter spacing laid as beds were covered with white-faced polyethylene film mulch. Single rows of greenhouseraised pepper plants were transplanted on 4 Sep at 10-inch spacing. Remaining fertilizer requirements were injected as liquid 7-2-7 using R R a DosatronV and maintenance sprays included XentariV (3, 11, 31 R Oct and 18 Nov), IntrepidV (11 and 31 Oct) to control lepidopteran R pests and Koicide 3000 þ Manzate ProstickV @ 1.5 lbs/acre as needed to control bacterial spot. Plots were assigned in an RCB design with seven treatments across four rows, each one a replicate. Each plot contained 30 plants with a six-plant buffer between plots. Applications were made using a high-clearance sprayer operating at 180 psi and 2.3 mph. Spray
was delivered through two vertical booms fitted with four yellow R ATR 80 hollow cone nozzles discharging 10 gpa each for a AlbuzV total of 40 gpa on 23, 30 Oct and 6, 15 Nov (Table 1). Populations of broad mite were monitored on 28 Oct, 5, 11, 20 Nov, and 1 Dec by collecting 10 terminal leaves from each plot and counting adult and juvenile mites and eggs under a stereoscopic microscope. Data were analyzed with ANOVA and means separation by LSD contingent on a significant treatment effect (P > 0.05). Broad mite populations were low throughout the trial, presumably due to the noted presence of a predatory phytoseiid mite, identified as Amblyseius swirskii. Baythroid at 2.8 oz/acre was applied on Dec 3 and 10 and Asana XL at 6.0 oz/acre was applied on Jan 6 and 13 in an attempt to flare the broad mite population to no avail as counts on all dates were null except for 28 Oct. All life stages were lumped together for comparisons, and all treatment programs on 28 Oct significantly reduced the number of broad mite compared to the untreated check (Table 1).
* No phytotoxic effects were seen in this experiment, which was supported by industry gifts of pesticide and research funding. C The Author 2015. Published by Oxford University Press on behalf of the Entomological Society of America. V
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact
[email protected]
1
Downloaded from http://amt.oxfordjournals.org/ by guest on January 15, 2016
broad mite | Polyphagotarsonemus latus
Arthropod Management Tests, 2015, Vol. 40, No. 1
2 Table 1 Application dates
Broad mite, all stages (No. per leaf)
Product/formulation Untreated check Agrimek SC Induce Requiem 25 EC Movento 2 SC Induce Requiem 25 EC Torac 15 EC Induce Agriflex Induce
3.5 oz 0.25% 2 qts 5 oz 0.25% 2 qts 14.0z 0.25% 5.8 oz 0.25%
23-Oct
30-Oct
6-Nov
15-Nov
x x x x x
x x x
x x x x x
x x x
x x x x
x x x x x
x x x x
x x x x x
28-Oct 5.00 a 0.35 b 0.30 b 1.03 b
0.20 b 0.33 b
Means within columns followed by same letter are not statistically different (LSD, P > 0.05).
Downloaded from http://amt.oxfordjournals.org/ by guest on January 15, 2016