Hero Image

Clebson Gomes Goncalves

Diversified Agriculture Advisor - Lake & Mendocino Counties
UC Cooperative Extension
883 Lakeport Boulevard
Lakeport, CA 95453
7072636838
goncalves@ucanr.edu Create VCard

Also in:
Mendocino County

Links

Biography

My educational background consists of studies that focused on agricultural/horticultural sciences. I have a B.S. degree in Agronomy, Masters' and a Ph.D. degree in Agronomy Sciences (Plant Production/ Weed Science). Also, an additional Masters' degree in Crop & Soil Science (Turfgrass/Weed Science) from Auburn University. Extensive experience and knowledge of managing crops, horticulture, turfgrass, and weeds in a wide range of environments.

My current research and crop responsibilities center around Diversified Agricultural Systems Farms, including horticulture crops, commercial fruit, and nut crops, and weed sciences exploring chemical and organic options for weed control, improving pesticide application technology, drone use for data collection and pesticide application, and pollinator-serving plant communities.

Education

M.S. Crop, Soil & Environmental Science, Auburn University. 2019
Ph.D Plant Production Science, Paulista State University—BR. 2017
M.S. Plant Production Science, Federal University of Viçosa—BR. 2014
B.S. Agronomy, Federal University of Tocantins—BR. 2012

Specialty

Diversified Agricultural Systems Area - Weed Science (Chemical and Organic Approaches), Integrated pest management, Ornamental Crops, and Turfgrass

Areas of Expertise (click to see all ANR academics with this expertise)

Bibliography

Peer Reviewed

  • Craft, M; Godara, N; Gonçalves, C; Askew, S (2024). Factors influencing subcanopy leaf and stolon exposure and associated absorption and translocation of herbicides in semidormant zoysiagrass. Weed Science. 72:1, 59-67. https://www.cambridge.org/core/journals/weed-science/article/factors-influencing-subcanopy-leaf-and-stolon-exposure-and-associated-absorption-and-translocation-of-herbicides-in-semidormant-zoysiagrass/8AE6893FB8AFBF54CE89A941C02E5C22
  • Bowling, B; McCurdy, J; Castro, E; Patton, A; Brosnan, J; Askew, S; Breeden, G; Elmore, M; Gannon, T; Gonçalves, C; Kaminski, J; Kowalewski, A; Liu, W; Mattox, C; McCarty, L; McCullough, P; McElroy, S; McKeithen, C; Osburn, A; Rogers, R; Rutland, C; Tang, K; Taylor, J; Unruh, B; Vargas, J; Bagavathiannan, M (2024). Multi-state survey to identify suspected resistance to four herbicides and one plant growth regulator in Poa annua. Crop, Forage & Turfgrass Management. e20300. https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/cft2.20300
  • Godara, N; Craft, M; Gonçalves, C; Askew, S (2024). Persistence and relocation of dislodgable herbicide residue from simulated rainfall following glyphosate treatment to dormant zoysiagrass turf. Crop Science. 64, 1-10. 31 March 2024. https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/csc2.21235
  • Askew, W; Godara, N; Brewer, J; Gonçalves, C; Goatley, M; Askew, S (2024). strength, and translocation rooting of a pollinator-garden sod. Agronomy Journal. First published: 31 August 2024. https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/agj2.21673

  • McCurdy, James; Bowling, Rebecca, et al. (2023). Developing and implementing a sustainable, integrated weed management program for herbicide-resistant Poa annua in turfgrass. Crop, Forage & Turfgrass Management. 9, 1-13. 29 March 2023. https://doi.org/10.1002/cft2.20225

  • Basak, Suma; Bo, Bi, et al. (2023). Discrimination of ACCase-inhibiting herbicides-resistant Digitaria ciliaris populations with three diagnostic bioassays. Advances in Weed Science. 41, 1-12. February 10, 2023.  https://doi.org/10.51694/AdvWeedSci/2023;41:00003

  • Silva Jr., Antônio; Marques, Ricardo, et al. (2023). Effect of glyphosate in Johnsongrass submitted to different soil water potentials. Journal of Environmental Science and Health, Part B. 1-9. Published online: 11 Feb 2023. https://doi.org/10.1080/03601234.2023.2176671

  • Rutland, Claudia; Bowling, Rebecca, et al. (2023). Survey of target site resistance alleles conferring resistance in Poa annua annua. Crop Science. 63:5, 3110-3121. 28 July 2023. https://doi.org/10.1002/csc2.21066

  • Gonçalves, Clebson; Marques, Ricardo; Marchi, Sidnei; Martins, Dagoberto (2022). Effect of different soil water managements on the selectivity of fomesafen in conventional and RR soybean. Journal of Environmental Science and Health, Part B. 57:10, 786-795. Published online: 30 Aug 2022.
  • Askew, D. S.; Gonçalves, C. G.; & Jester, J. L. (2022). Field Assessment of Flazasulfuron and Trifloxysulfuron Sodium Drift. International Turfgrass Society Research Journal. 10-15 July 2022.
  • Koo, D.; Gonçalves, C. G.; & Askew, D. S. (2022). Lolium arundinaceum Leaf and Root Developmental Temperatures Influence Allelopathic Potency on Poa annua. International Turfgrass Society Research Journal. 10-15 July 2022.
  • Askew, W. L. B.; Willis, J. B.; Beam, J. B.; Venner, K. A.; Gonçalves, C. G.; & Askew, D. S. (2022). Postemergence Polygonum aviculare Control in Cynodon dactylon Turf. International Turfgrass Society Research Journal. 10-15 July 2022.
  • Goddard, M. J. R.; Gonçalves, C. G.; & Askew, D. S. (2022). Selective Perennial Ryegrass Control in Creeping Bentgrass with Flazasulfuron. International Turfgrass Society Research Journal. 10-15 July 2022.
  • Jester, J. L.; Gonçalves, C. G.; Willis, J. B.; & Askew, D. S. (2022). Turfgrass Response to Flazasulfuron and Trifloxysulfuron Sodium Deposited by Runoff Water. International Turfgrass Society Research Journal. 10-15 July 2022.
  • Brown, A. M.; Harris, J. R.; Gonçalves, C. G.; Peppers, J. M.; Magni, S.; Volterrani, M.; & McElroy, J. S. (2021). Growing Degree-Days Optimize Trinexapac-Ethyl Reapplications on Ultradwarf Bermudagrass Putting Greens: I. Predicting the Maximum Suppression Point. Crop Science.
  • Brown, A. M.; Harris, J. R.; Gonçalves, C. G.; Peppers, J. M.; Magni, S.; Volterrani, M.; & McElroy, J. S. (2021). Growing Degree-Days Optimize Trinexapac-Ethyl Reapplications on Ultradwarf Bermudagrass Putting Greens: II. Testing a Reapplication Schedule. Crop Science.
  • Gonçalves, C. G.; McElroy, J. S.; Brown, A. M.; McCullough, P. E.; Leon, R. G.; Kelly, S. T.; Baker, R. D.; & McCarty, L. B. (2021). Metsulfuron on a granular fertilizer carrier applied at excessive rates causes injury on centipedegrass (Eremochloa ophiuroides). Crop, Forage & Turfgrass Management.
  • Gonçalves, C. G.; Ricker, D. B.; & Askew, D. S. (2021). Perennial ryegrass phytotoxicity from mesotrione increases with rate and growth-promoting environmental conditions. Crop Science.
  • Gonçalves, C. G.; Brown, A. M.; Basak, S.; & McElroy, J. S. (2021). Response of seashore paspalum and bermudagrass to topramezone and triclopyr mixtures. Weed Technology.
  • Goddard, M. J. R.; Gonçalves, C. G.; & Askew, D. S. (2021). Simulated controlled-release mesotrione for turfgrass tolerance and weed control. Weed Technology.
  • Basak, S.; McElroy, J. S.; Brown, A. M.; Gonçalves, C. G.; Patel, J. D.; & McCullough, P. E. (2020). Plastidic ACCase Ile-1781-Leu induces resistance to pinoxaden herbicides in Digitaria ciliaris. Weed Science.
  • Peppers, J. M.; Gonçalves, C. G.; & McElroy, J. S. (2020). Rate response of select grass weeds to pinoxaden. Weed Technology.
  • Gonçalves, C. G.; Jr., Silva; C., A.; Alves, L. R.; Pereira, M. R. R.; Gratão, P. L.; & Martins, D. (2019). Biochemical examination of non-transgenic and transgenic soybean plants under drought stress conditions. Biologia Plantarum.
  • Oliveira, L.; Silva Jr, A. C.; Gonçalves, C. G.; Pereira, M. R. R.; & Martins, D. (2019). Herbicides selectivity in native trees from Brazil. Advances in Weed Science.
  • Gonçalves, C. G.; McElroy, J. S.; Peppers, J. M.; Basak, S.; Fain, G. B.; & Li, S. (2019). Turfgrass applied metsulfuron-methyl induces specific symptomology on non-target tree species. Crop, forage and Turfgrass management.
  • Goncalves, C. G.; Silva Junior, A. C.; Scarano, M.; Pereira, M. R. R.; & Martins, D. (2018). Action of imazethapyr and lactofen on the nodulation of conventional and transgenic soybean under drought stress conditions. Advances in Weed Science.
  • Gonçalves, C. G.; Silva Jr., A. C. D.; Scarano, M.; Pereira, M. R. R.; & Martins, D. (2018). Chlorimuron-ethyl in conventional and transgenic soybean cultivars under water deficit stress. Revista Caatinga.
  • Silva Jr, A. C.; Goncalves, C. G.; Scarano, M. C.; Pereira, M. R. R.; & Martins, D. (2018). Effect of glyphosate on guineagrass submitted to different soil water potential. Advances in Weed Science.
  • Silva Jr., A. C. D.; Gonçalves, C. G.; Queiroz, J. R. G.; & Martins, D. (2018). Evaluation of leaching potential of tebuthiuron using bioindicator plants. Arquivos do Instituto Biológico.
  • Costa, A. C. R. D.; Gonçalves, C. G.; Silva Junior, A. C. D.; Cardoso, L.; & Martins, D. (2017). Action of rain on formulations of glyphosate mixed with saflufenacil for the control of Brachiaria decumbens. Arquivos do Instituto Biológico.
  • Gonçalves, C. G.; Reis, M. R.; Dos Santos, G. R.; Matsuo, É.; Reis, R. M.; Souza, M. F.; & Silva, D. V. (2017). Glyphosate formulations on nutritional condition and productivity of roundup ready soybean. Communications in Soil Science and Plant Analysis.
  • Vitorino, H. D. S.; Silva Junior, A. C. D.; Gonçalves, C. G.; & Martins, D. (2017). Interference of a weed community in the soybean crop in functions of sowing spacing. Revista Ciencia Agronomica.
  • Gonçalves, C. G.; Silva Jr., A. C.; Pereira, M. R. R.; Gasparino, E. C.; & Martins, D. (2017). Morphological modifications in soybean in response to soil water management. Plant Growth Regulation.
  • Silva Jr., A. C.; Gonçalves, C. G.; & Martins, D. (2016). Period of rain after saflufenacil application in controlling floating aquatic macrophytes. Revista Brasileira de Herbicidas.
  • Campos, C. F.; Barroso, A. A. M.; Silva, A. C.; Gonçalves, C. G.; & Martins, D. (2016). Periods of weed interference in maize crops cultivated in the first and second cycles. Semina. Ciências Agrárias.
  • Goncalves, C. G.; Silva Jr., A. C.; Pereira, M. R. R.; Marchi, S. R.; & Martins, D. (2016). Selectivity of saflufenacil applied singly and in combination with glyphosate on coffee and citrus crops. Revista Caatinga.
  • Martins, D.; Goncalves, C. G.; & Silva Jr., A. C. (2016). Winter mulches and chemical control on weeds in maize. Revista Ciência Agronômica.
  • Carvalho Dias, R.; Gonçalves, C.G.; Reis, M.R.; Mendes, K.F.; Carneiro, G.D.O.P.; Melo, C.A.D; & Pereira, A.A. (2015). Herbicide selectivity applied in post-emergence in pearl millet. Revista Brasileira de Herbicidas.
  • Walperes, K. C.; Reis, M. R.; Carneiro, G. D. O. P.; Rocha, B. H.; Dias, R. C.; Melo, C. A. D.; & Gonçalves, C. G. (2015). Residual effect of metribuzin in the soil on the growth of garlic, onion and beans. Revista Brasileira de Herbicidas.
  • Santos, G. R. D.; Brum, R. B. C. S.; Castro, H. G. D.; Gonçalves, C. G.; & Fidelis, R. R. (2013). Effect of essential oils of medicinal plants on leaf blotch in Tanzania grass. Revista Ciência Agronômica.
  • Sarmento-Brum, R. B.; Santos, G. R.; Castro, H. G.; Goncalves, C. G.; Chagas Junior, A. F.; & Nascimento, I. R. (2013). Effect of essential oils of medicinal plants on the anthracnose of sorghum.
  • Sarmento-Brum, R. B. C.; Santos, G. R.; Castro, H. G.; Gonçalves, C. G.; Cardon, C. H.; Leão, E. U.; & Sarmento, R. D. A. (2013). Evaluation in vitro of different methods of analysis fungitoxicity of essential oils. Bioscience Journal.
  • Reis, M. R.; Leão, E. U.; Santos, G. R.; Sarmento-Brum, R. B. C.; Gonçalves, C. G.; Cardon, C. H.; & Silva, D. B. (2013). Impact of herbicides on strains of Trichoderma spp. Advances in Weed Science.
  • Santos, G. R.; Leão, E. U.; Gonçalves, C. G.; & Cardon, C. H. (2013). Potassium fertilizer and irrigation management in the progress of fungal diseases and yield of watermelon. Horticultura Brasileira.
  • Santos, G. R.; Leão, E. U.; Garcia, M.; Maluf, W. R.; Cardon, C. H.; Gonçalves, C. G.; & Nascimento, I. R. (2013). Reaction of experimental watermelon genotypes to gummy stem blight. Horticultura Brasileira.
  • Santos, G. R. D.; Gama, F. R.; Gonçalves, C. G.; Rodrigues, A. C.; Leão, E. U.; Cardon, C. H.; & Bonifacio, A. (2013). Severity of foliar diseases and genotype maize yield in response to nitrogen fertilization. Revista Ceres.

Non-Peer Reviewed

  • Gonçalves, Clebson (2024). Development of Non-synthetic Herbicide Application Programs for Weed Management in Perennial Crops. 2024 Western Society of Weed Science (WSWS) ANNUAL MEETING.
  • Gonçalves, Clebson (2024). Flatheaded Borer Damage in Pear Fruit. North Coast Diversified Agricultural Systems Notes.C. Gonçalves. 1-3. July 2024. https://celake.ucanr.edu/newsletters/Diversified_Agricultural_Notes102159.pdf
  • Curtis Garner, C; Gonçalves, C (2024). Future of Application Technology: Hyper-precise Pinpoint Spray. 2024 California Weed Science Society (CWSS) Annual Conference.
  • Gonçalves, Clebson (2024). Italian Ryegrass: Management and Challenges in Orchard Systems. California Weed Science Society (CWSS) Journal and Research Update.C. Goncalves. 16:1, 23-26. https://cwss.org/wp-content/uploads/2024/07/CWSS_-July-2024-Issue.pdf
  • Gonçalves, Clebson (2024). Orchard Weed Management Using Organic Herbicides. California Association of Pest Control Advisers - The Adviser (CAPCA). XXVII:3, 34-37. June 2024. https://capca.com/wp-content/uploads/2024/05/CAPCA_ADV_JUN-2024_LOW-RES.pdf
  • Burks, C; Kron, C; Zoller, B; Gonçalves, C; Wilson, H; Gonzales, N; Martin, T; Higbee, B (2024). Performance of Sterile Codling Moth in California Pear Orchards. 98th Orchard Pest & Disease Management Conference. 24.
  • Kron, C; Gonçalves, C; Zoller, B; Gonzalez, A; Moulton, J; Addesso, K; Klingeman, K (2024). Unknown Flatheaded Borer Pest Found in Pear Fruit. 98th Orchard Pest & Disease Management Conference. 10.
  • Gonçalves, Clebson (2024). Walnut Tasks: Low-input strategy for weed suppression. Pacific Nut Producer Magazine (PNP). 30:10, 18-21. October 2024 Issue. https://pacificnutproducer.com/2024/10/01/read-october-2024-issue/

  • https://wssa.net/wp-content/uploads/2023-WSSA_NEWSS-Joint-Annual-Meeting-Program-2.pdf

  • Corbett, Bret; Goncalves, Clebson; Peppers, John; Askew, Shawn (2023). Evaluation of quinclorac and selected admixtures for smooth crabgrass control during drought and simulated post-treatment rainfall. WSSA/NEWSS Joint Annual Meeting. Jan 30, 2023 – Feb 2, 2023.

  • https://wssa.net/wp-content/uploads/2023-WSSA_NEWSS-Joint-Annual-Meeting-Program-2.pdf

  • Koo, Daewon; Godara, Navdeep; Peppers, John; Clebson, Goncalves; Henderson, Caleb; Askew, Shawn (2023). Factors that influence uniform droplet deposition from an agricultural spray drone. WSSA/NEWSS Joint Annual Meeting. Jan 30, 2023 – Feb 2, 2023.
  • Godara, Navdeep; Clebson, Goncalves; Askew, Shawn (2023). Glyphosate Formulations Influence Weed Control in Adverse Environmental Conditions. 76th Southern Weed Science Society Meeting. Jan. 23-26, 2023.

  • Romero, Juan; Koo, Daewon; Askew, Shawn; Goatley, James; Brewer, John; Goncalves, Clebson; Peppers, John (2023) Influence of Management Intensity and Turfgrass Species on Floral Density of a Bulb Lawn [Abstract]. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO. https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/150763

  • Koo, Daewon; Clebson, Goncalves; Askew, Shawn (2023). Influence of tall fescue canopy architecture on weed emergence. WSSA/NEWSS Joint Annual Meeting. Jan 30, 2023 – Feb 2, 2023.

  • Goncalves, Clebson (2023). Italian ryegrass update: latest research and management strategy. UC WEED SCIENCE: Weed control, management, ecology, and minutia - Blog. Davis, CA. August 21, 2023. https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=57672

  • Goncalves, Clebson (2023). New pest invades mountain pear orchards. The Ukiah Daily Journal. Ukiah. 10/28/23. https://www.ukiahdailyjournal.com/2023/10/27/new-pest-invades-mountain-pear-orchards-growers-invited-to-virtual-meeting-about-flatheaded-borer/

  • Koo, Daewon; Goncalves, Clebson; Askew, Shawn(2023) Organic Chemicals for Weed Control in Dormant Turf [Abstract]. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO. https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/149576

  • Goncalves, Clebson (2023). Pokeweed: How to Control in an Organic Orchard System? UC WEED SCIENCE: Weed control, management, ecology, and minutia - Blog. March 6, 2023. https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=56376

  • Askew, S; Goatley, M; Gonçalves, C (2023). Promoting native roadside plant communities and ensuring successful vegetation establishment practices. (No. FHWA/VTRC 23-R14). Virginia Transportation Research Council (VTRC). 2023-03-01. https://rosap.ntl.bts.gov/view/dot/66852

  • Godara, Navdeep; Jordan, Craft; Goncalves, Clebson; Askew, Shawn (2023) Rainfall Relocates Glyphosate from Dormant Zoysiagrass Foliage to Newly-Developed Green Shoots [Abstract]. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO. https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/150078

  • Elkins, R; Leinfelder-Miles, M; Goncalves, C; Murdock, J; Long, P; Goodrich, B (2023). SAMPLE COSTS TO PRODUCE PEARS – SACRAMENTO COUNTY 2023. UC AGRICULTURE AND NATURAL RESOURCES, COOPERATIVE EXTENSION, UC DAVIS DEPARTMENT OF AGRICULTURAL AND RESOURCE ECONOMICSUC AGRICULTURE AND NATURAL RESOURCES, COOPERATIVE EXTENSION, UC DAVIS DEPARTMENT OF AGRICULTURAL AND RESOURCE ECONOMICS. Sacramento Valley, CA, UCCE, UC DAVIS-ARE.
  • Nodara, Navdeep; Clebson, Goncalves; Askew, Shawn (2023). The Quest for Thermal Weed Control in Managed Turf Systems. 76th Southern Weed Science Society Meeting. Jan. 23-26, 2023.
  • Goncalves, Clebson; De Castro, Edicarlos; McCurdy, James; Askew, Shawn; McKeithen, Chase; Unruh, Bryan; Kaminski, John; Kaiyuan, Tang (2023). Turfgrass Weed Management without Synthetic Herbicides. 75th Annual Conference of the California Weed Science Society. Jan. 18-20, 2023.

  • Goncalves, Clebson (2023). UC Diversified Agricultural Systems Program active in Mendocino and Lake Counties. The Ukiah Daily Journal. Ukiah. July 18, 2023. https://www.ukiahdailyjournal.com/2023/07/18/uc-diversified-agricultural-systems-program-active-in-mendocino-and-lake-counties/

  • Koo, Daewon; Clebson, Goncalves; Henderson, Caleb; Peppers, John; Godara, Navdeep; Askew, Shawn (2023). Use of an Agricultural Spray Drone in Managed Turfgrass Systems. 75th Annual Conference of the California Weed Science Society. Jan. 18-20, 2023.

  • Gonçalves, Clebson; Milliron, Luke (2023). Walnut Tasks "Weed Management". PNP Pacific Nut Producer.M. Media. 10, 36. October 2023.

    https://pacificnutproducer.com/2023/10/01/read-october-2023-issue/

  • Goncalves, Clebson (2023). Weed Science Research: Current Management of Italian Ryegrass in Perennial Cropping Systems. Your North Coast Orchard Notes. 1-6. September 2023.
  • Koo, Daewon; Vahidi, Milad; Goncalves, Clebson; Peppers, John; Shafian, Sanaz; Askew, Shawn (2022). Does NDVI Consistently Assess Plant Response to Herbicides? ASA, CSSA, SSSA International Annual Meeting. Nov. 6-9 2022.
  • Askew, Shawn; Gonçalves, Clebson (2022). Factors associated with native and exotic plant occurrence in Virginia roadside communities. ASA, CSSA, SSSA International Annual Meeting. Nov. 6-9 2022.
  • Koo, Daewon; Henderson, Caleb; Godara, Navdeep; Peppers, John; Goncalves, Clebson; Askew, Shawn (2022). Height and Nozzle Selection Influence Droplet Vaporization from Agricultural Spray Drones. ASA, CSSA, SSSA International Annual Meeting. Nov. 6-9 2022.
  • Koo, Daewon; Clebson, Goncalves; Askew, Shawn (2022). Influence of height on spray deposition pattern of an agricultural spray drone. 8th International Weed Science Congress "Weed Science in a Climate of Change". 4th - 9th December 2022.
  • Godara, Navdeep; Askew, Shawn; Peppers, John; Koo, Daewon; Goncalves, Clebson (2022). Influence of Herbicides and Formulation Constituents on Bloom Morphology and Insect Foraging of Lawn Weeds. ASA, CSSA, SSSA International Annual Meeting. Nov. 6-9 2022.
  • Gonçalves, Clebson (2022). Introducing a New Era of UC Cooperative Extension Farm Advisors. California Fresh Fruit. 39, 10.
  • Godara, Navdeep; Askew, Shawn; Brewer, John; Peppers, John; Koo, Daewon; Goncalves, Clebson (2022). Multi-Year Evaluation of Bermudagrass Control on Creeping Bentgrass Fairways from Herbicides and Mechanical Slicing. ASA, CSSA, SSSA International Annual Meeting. Nov. 6-9 2022.
  • Elkins, Rachel; Goncalves, Clebson (2022). Transitioning to a New Era at UC Cooperative Extension. Your North Coast Orchard Notes.

ANR Workgroup Associations

Return to Research and Education for Sonoma County