Have a personal or library account? Click to login

Alternative Methods to Manage Silverleaf Whitefly [Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae)] in Zucchini (Cucurbita pepo L.)

Journal of Horticultural Research
Volume 31 (2023): Issue 1 (June 2023)
By:
Open Access
|Jul 2023

Figures & Tables

Effect of plastic mulch color and row cover on plant growth, leaf whitefly index (WFindex), and zucchini fruit yield (Trial #1)_ Values are means ± SE, fall of 2019

TreatmentPlant fresh wt (g)Whitefly index1Marketable (1000 per ha)Marketable (t per ha)Fruit wt (g per fruit)
Mulch
Black328 ± 343.0101.3 ± 9.121.6 ± 2.6208.0 ± 26.5
White336 ± 363.2131.8 ± 13.528.4 ± 3.3216.8 ± 12.3
Row cover
Covered333 ± 321.8 b2135.4 ± 11.028.1 ± 3.7201.3 ± 12.9
Uncovered331 ± 374.3 a108.6 ± 11.524.6 ± 1.9236.0 ± 24.0
Significance
Mulch (M)0.8820.9720.1800.2980.845
Row cover (C)0.971<0.0020.0940.3600.218
M × C0.6670.9940.8290.8200.706

Effect of plastic mulch color and particle clay applications on plant growth, leaf whiteflies index (WFindex), and marketable fruit yield in zucchini (Trial #2)_ Values are means ± SE, fall of 2019

TreatmentPlant fresh wt (g)WFindexMarketable (1000 per ha)Marketable (t per ha)Fruit wt (g)Leaf temperature (°C)Mulch surface temperature (°C)
Mulch
Black521 ± 462.64152.6 ± 2.9 b211.9 ± 0.9 b227 ± 11.936.9 ± 1.745.5 ± 2.6
Gray509 ± 332.7568.7 ± 5.0 a16.4 ± 1.6 a237 ± 11.436.2 ± 1.446.6 ± 3.1
White462 ± 232.6368.6 ± 5.9 a14.9 ± 1.5 ab217 ± 12.636.8 ± 1.246.8 ± 1.3
Particle clay
Untreated488 ± 282.90 a358.0 ± 4.0 b13.0 ± 1.1 b225 ± 10.539.6 ± 0.9 a51.0 ± 1.4 a
Treated509 ± 322.44 b67.2 ± 4.2 a15.4 ± 1.2 a228 ± 9.333.7 ± 0.7 b41.5 ± 1.2 b
Significance
Mulch (M)0.5080.7080.0070.0180.4680.7370.798
Particle clay (C)0.613<0.00010.0320.0350.6450.0002<0.0001
M × C0.9900.0790.3350.0690.0920.8650.188

Effect of organic insecticidal solutions on plant growth, whiteflies index (WFindex), and zucchini fruit yield (Trial #3)_ Values are means ± SE, fall of 2020

TreatmentPlant fresh wt (g)WFindex1Marketable (1000 per ha)Marketable (t per ha)Fruit wt (g per fruit)
Neem oil7772.7 b2102 ± 216.6 ± 1.0162 ± 9
Soap7172.6 b105 ± 616.8 ± 1.4158 ± 7
Control (water)6024.1 a108 ± 817.0 ± 1.2159 ± 6
P0.283<0.00010.8500.9590.804

Effect of row cover on whitefly index (WFindex) odds ratio estimates and Wald confidence intervals in zucchini grown with row cover or uncovered, fall of 2019

Odds ratioEstimate95% confidence interval
WFindex 2: With cover vs. Uncovered4.8742.04011.650
WFindex 3: With cover vs. Uncovered2.1810.6087.819

Effect of organic insecticidal solutions on plant growth, whitefly index (WFindex), and zucchini fruit yield (Trial #3)_ Values are means ± SE, fall of 2019

TreatmentPlant fresh wt (g)WFindex1Marketable (1000 per ha)Marketable (t per ha)Fruit wt (g per fruit)
Neem oil624 ± 742.7 ± b246.6 ± 3.9 a39.3 ± 1.0 a199 ± 10.4
Soap631 ± 442.5 ± c34.1 ± 6.1 ab6.0 ± 1.3 ab181 ± 7.1
Control (water)569 ± 493.7 ± a20.6 ± 5.7 b3.8 ± 1.2 b175 ± 22.1
P0.693<0.00010.0230.0240.517
DOI: https://doi.org/10.2478/johr-2023-0002 | Journal eISSN: 2353-3978 | Journal ISSN: 2300-5009
Journal RSS Feed
Language: English
Page range: 61 - 70
Submitted on: Feb 1, 2023
Accepted on: Apr 1, 2023
Published on: Jul 16, 2023
Published by: National Institute of Horticultural Research
In partnership with: Paradigm Publishing Services
Publication frequency: 2 times per year
Keywords:
dish soap,
neem oil,
particle clay,
plastic mulch,
whitefly management
Related subjects:
Life sciences,
Biotechnology,
Plant science,
Ecology,
Life sciences, other

© 2023 Juan Carlos Díaz-Pérez, Theodore McAvoy, Xuelin Luo, Sudeep Bag, published by National Institute of Horticultural Research
This work is licensed under the Creative Commons Attribution 4.0 License.

Previous articleVolume 31 (2023): Issue 1 (June 2023)Next article