Skip to main content
ARS Home » People & Locations » Charles Howell (Charlie)
Charles R Howell (Charlie)
Location not available
Research Plant Pathologist

Phone: (979) 260-9233
Fax: (979) 260-9319

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
EFFECT OF SEED QUALITY AND FUNGICIDE/TRICHODERMA SPP. SEED TREATMENTS ON PRE- AND POST-EMERGENCE DAMPING-OFF IN COTTON - (Peer Reviewed Journal)
Howell, C.R. 2006. Effect of seed quality and fungicide/Trichoderma spp. seed treatments on pre- and post-emergence damping-off in cotton. Phytopathology. 97:66-71.
IDENTIFICATION OF PYTHIUM SPECIES ON WEST TEXAS PEANUTS AND SENSITIVITY OF ISOLATES TO MEFENOXAM AND AZOXYSTROBIN IN PETRI DISH ASSAYS. - (Peer Reviewed Journal)
Wheeler, T.A., Howell, C.R., Cotton, J., Porter, D. 2005. Identification of Pythium species on West Texas peanuts and sensitivity of isolates to mefenoxam and azoxystrobin in petri dish assays. Peanut Science. 32(1):9-13.
A STUDY OF THE CHARACTERISTICS OF "P" AND "Q" STRAINS OF TRICHODERMA VIRENS TO ACCOUNT FOR DIFFERENCES IN BIOLOGICAL CONTROL EFFICACY AGAINST COTTON SEEDLING DISEASES - (Peer Reviewed Journal)
Howell, C.R., Puckhaber, L.S. 2005. A study of the characteristics of "P" and "Q" strains of Trichoderma virens to account for differences in biological control efficacy against cotton seedling diseases. Biological Control. 33:217-222.
COMPARATIVE BIOCONTROL EFFICACIES OF "P" AND "Q" STRAINS OF TRICHODERMA VIRENS IN THE BIOCONTROL OF COTTON SEEDLING DISEASES - (Abstract Only)
Howell, C.R., Puckhaber, L.S. 2005. Comparative biocontrol efficacies of "P" and "Q" strains of Trichoderma virens in the biocontrol of cotton seedling diseases [abstract]. Proceedings of Beltwide Cotton Conferences. p. 136.
UNDERSTANDING THE MECHANISMS EMPLOYED BY TRICHODERMA VIRENS TO EFFECT BIOLOGICAL CONTROL - (Proceedings)
Howell, C.R. 2004. Understanding the mechanisms employed by Trichoderma virens to effect biological control [abstract]. Phytopathology. 94:S-138.
FUNCTIONAL CHARACTERIZATION OF SM1, A 16-KDA PROTEIN FROM TRICHODERMA VIRENS INVOLVED IN PLANT-ASSOCIATED INTERACTIONS - (Abstract Only)
Djonovic, S., Dangott, L.J., Howell, C.R., Kenerley, C.M. 2004. Functional characterization of SM1, a 16-kda protein from Trichoderma virens involved in plant-associated interactions [abstract]. American Phytopathological Society. 94(6):S26.
COTTON SEEDLING DISEASE CONTROL WITH BIOLOGICAL/CHEMICAL SEED TREATMENTS - (Abstract Only)
Howell, C.R. 2004. Cotton seedling disease control with biological/chemical seed treatments. Proceedings of Beltwide Cotton Conferences. January 5-9, 2004, San Antonio, Texas. National Cotton Council. 2004 CDROM. p. 421.
TRICHODERMA SPP. -- OPPORTUNISTIC AVIRULENT PLANT SYMBIONTS - (Review Article)
Harman, G.E., Howell, C.R., Viterbo, A., Chet, I., Lorito, M. 2004. Trichoderma spp.--opportunistic avirulent plant symbionts. Nature Reviews Microbiology. 2:43-56.
ELICITORS OF PLANT DEFENSE RESPONSES FROM BIOLOGICAL CONTROL STRAINS OF TRICHODERMA VIRENS - (Peer Reviewed Journal)
Hanson, L.E., Howell, C.R. 2004. Elicitors of plant defense responses from biological control strains of trichoderma virens. Phytopathology.
BIOCONTROL OF PRE-EMERGENCE COTTON SEEDLING DISEASE BY METABOLISM OF PATHOGEN GERMINATION INDUCERS - (Abstract Only)
Howell, C.R., Puckhaber, L.S., Stipanovic, R.D. 2003. Biocontrol of pre-emergence cotton seedling disease by metabolism of pathogen germination inducers [abstract]. American Phytopathological Society Abstracts. 93(6):S37.
MECHANISMS EMPLOYED BY TRICHODERMA SPECIES IN THE BIOLOGICAL CONTROL OF PLANT DISEASES - (Peer Reviewed Journal)
HOWELL, C.R. MECHANISMS EMPLOYED BY TRICHODERMA SPECIES IN THE BIOLOGICAL CONTROL OF PLANT DISEASES. PLANT DISEASE. 2003. V. 87. P. 4-10.
PRE-EMERGENCE DAMPING-OFF OF COTTON SEEDLINGS BY PYTHIUM SPP. AND RHIZOPUS ORYZAE - (Proceedings)
HOWELL, C.R. PRE-EMERGENCE DAMPING-OFF OF COTTON SEEDLINGS BY PYTHIUM SPP. AND RHIZOPUS ORYZAE. CD-ROM. NATIONAL COTTON COUNCIL BELTWIDE COTTON CONFERENCES. 2003.
Toxicity of (+)- and (-)-gossypol to the plant pathogen, Rhizoctonia solani - (Peer Reviewed Journal)
Puckhaber, L.S., Dowd, M.K., Stipanovic, R.D., Howell, C.R. 2002. Toxicity of (+)- and (-)-gossypol to the plant pathogen, Rhizoctonia solani. Journal of Agricultural and Food Chemistry. 50(24)7017-7021.
PRE-EMERGENCE DAMPING OFF IN COTTON SEEDLINGS: CURRENT THINKING ABOUT CAUSES AND CONTROL - (Popular Publication)
HOWELL, C.R. PRE-EMERGENCE DAMPING OFF IN COTTON SEEDLINGS: CURRENT THINKING ABOUT CAUSES AND CONTROL. COTTON FARMING. MARCH 2002. P. 20.
TOXICITY OF (+)- AND (-)-GOSSYPOL TO RHIZOCTONIA SOLANI - (Abstract Only)
PUCKHABER, L., STIPANOVIC, R.D., DOWD, M.K., HOWELL, C.R. TOXICITY OF (+)- AND (-)-GOSSYPOL TO RHIZOCTONIA SOLANI. PROCEEDINGS OF BELTWIDE COTTON CONFERENCES. CD-ROM. MEMPHIS, TN: NATIONAL COTTON COUNCIL. 2002.
ECOLOGY AND BIOCONTROL OF PRE-EMERGENCE SEEDLING DISEASE PATHOGENS OF COTTON - (Abstract Only)
HOWELL, C.R. ECOLOGY AND BIOCONTROL OF PRE-EMERGENCE SEEDLING DISEASE PATHOGENS OF COTTON. PROCEEDINGS OF BELTWIDE COTTON CONFERENCES. CD-ROM. MEMPHIS, TN: NATIONAL COTTON COUNCIL. 2002. ABSTRACT.
COTTON SEEDLING PRE-EMERGENCE DAMPING-OFF INCITED BY RHIZOPUS ORYZAE AND PYTHIUM SPP., AND ITS BIOLOGICAL CONTROL WITH TRICHODERMA SPP. - (Peer Reviewed Journal)
BIOLOGICAL CONTROL EFFICACY AND OTHER CHARACTERISTICS OF PROTOPLAST FUSANTS BETWEEN TRICHODERMA KONINGII AND T. VIRENS - (Peer Reviewed Journal)
Hanson, L.E., Howell, C.R. 2002. Biological control efficacy and other characteristics of protoplast fusants between trichoderma koningii and t. virens. Mycological Research.
ANTIBIOTIC PROPERTIES OF A PROTOPLST FUSANT OF TRICHODERMA VIRENS AND T. ATROVIRIDE - (Abstract Only)
PYTHIUM APHANIDERMATUM AND COTTON SEEDLING AND ROOT DISEASE. - (Abstract Only)
INDUCED SYNTHESIS OF FUNGITOXIC TERPENOIDS IN COTTON ROOTS BY SEED TREATMENT WITH THE BIOCONTROL AGENT TRICHODERMA VIRENS - (Abstract Only)
EFFECT OF PYTHIUM APHANIDERMATUM ON THE BIOCONTROL OF RHIZOCTONIA SOLANI ON COTTON WITH TRICHODERMA VIRENS - (Abstract Only)
ISOLATION OF A PLANT DEFENSE ELICITOR FROM TRICHODERMA VIRENS. - (Abstract Only)
TOXICITY OF COTTON PHYTOALEXINS TO THE SEEDLING DISEASE PATHOGEN RHIZOCTONIA SOLANI - (Proceedings)
MECHANISMS IN THE BIOCONTROL OF PYTHIUM DAMPING-OFF OF COTTON WITH TRICHODERMA VIRENS. - (Abstract Only)
THE ROLE OF HYDROLYTIC ENZYMES IN THE BIOCONTROL ACTIVITY OF TRICHODERMA VIRENS - (Proceedings)
INDUCTION OF TERPENOID SYNTHESIS IN COTTON ROOTS AND CONTROL OF RHIZOCTONIASOLANI BY SEED TREATMENT WITH TRICHODERMA VIRENS - (Peer Reviewed Journal)
ELICITATION OF COTTON PHYTOALEXIN PRODUCTION BY CULTURE FILTRATES FROM TRICHODERMA VIRENS. - (Abstract Only)
ANTIBIOTIC PRODUCTION BY TRICHODERMA KONINGII FUSANTS AS COMPARED TO THE T. KONINGII PARENT - (Abstract Only)
INDUCTION OF PHYTOALEXINS IN COTTON BY THE BIOCONTROL AGENT TRICHODERMA VIRENS - (Proceedings)
POTENTIAL OF TRICHODERMA VIRENS FOR BIOCONTROL OF ROOT ROT/VINE DECLINE IN CUCUMIS MELO L. CAUSED BY MONOSPORASCUS CANNONBALLUS - (Peer Reviewed Journal)
CONTROL OF WOOD DECAY BY TRICHODERMA VIRENS - (Peer Reviewed Journal)
SELECTIVE ISOLATION FROM SOIL AND SEPARATION IN VITRO OF P AND Q STRAINS OF TRICHODERMA VIRENS WITH DIFFERENTIAL MEDIA - (Peer Reviewed Journal)
VARIABLITY IN PROGENY FROM PROTOPLAST FUSIONS BETWEEN TRICHODERMA VIRENS AND OTHER TRICHODERMA SPECIES - (Abstract Only)
TRANSFER OF HEAT TOLERANCE AND OTHER CHARACTERISTICS BY PROTOPLAST FUSION IN TRICHODERMA SPECIES - (Abstract Only)
BIOLOGICAL CONTROL OF FUSARIUM WILT OF MUSKMELON USING NONPATHOGENIC FUSARIUM SPP. AND OTHER BIOLOGICAL AGENTS, 1997-1998 - (Peer Reviewed Journal)
VARIABLE PROGENY RESULTING FROM PROTOPLAST FUSIONS BETWEEN TRICHODERMA SPECIES. - (Abstract Only)
EVALUATION OF TRICHODERMA VIRENS AS A POTENTIAL BIOCONTROL AGENT OF MONOSPORASCUS CANNONBALLUS IN MUSKMELON - (Abstract Only)
SEEDLING DISEASE CONTROL: INDUCTION OF PHYTOALEXIN SYNTHESIS IN COTTON BY BIOCONTROL AGENTS - (Abstract Only)
FIELD CONTROL OF COTTON SEEDLING DISEASES WITH TRICHODERMA VIRENS/CHEMICAL SEED TREATMENTS - (Peer Reviewed Journal)
PYTHIUM - (Book / Chapter)
THE ROLE OF ANTIBIOSIS IN BIOCONTROL - (Book / Chapter)
COMPARISONS OF GLIOCLADIUM VIRENS AND A COMBINATION OF TRICHODERMA SPECIES (BINAB T) IN POLYMER COATINGS OF COTTON SEED FOR CONTROLLING SEEDLING DISEASES - (Proceedings)
FIELD EFFICACY OF VIRIDIOL(-) MUTANTS OF TRICHODERMA VIRENS FOR BIOCONTROL OF COTTON SEEDLING DISEASES - (Peer Reviewed Journal)
PYTHIUM - (Book / Chapter)
SIMPLE SELECTIVE MEDIA FOR ISOLATION OF TRICHODERMA VIRENS FROM SOIL - (Abstract Only)
MECHANISMS IN COTTON SORESHIN BIOCONTROL BY TRICHODERMA VIRENS: VIRIDIOL PRODUCTION - (Proceedings)
SUPPRESSION OF FUSARIUM COLONIZATION OF COTTON ROOTS AND FUSARUM WILT BY SEED TREATMENTS WITH GLIOCLADIUM VIRENS AND BACILLUS SUBTILIS - (Peer Reviewed Journal)
FREQUENCY OF ISOLATION AND THE PATHOGENICITY OF FUSARIUM SPECIES ASSOCIATED WITH HEALTHY COTTON SEEDLING ROOTS - (Peer Reviewed Journal)
SUPPRESSION OF FUSARIUM COLONIZATION OF COTTON ROOTS AND FUSARIUM WILT BY SEED TREATMENTS WITH GLIOCLADIUM VIRENS AND BACILLUS SUBTILIS - (Peer Reviewed Journal)