PMSP for Pecans in the Southeastern US

Source

Title	PMSP for Pecans in the Southeastern US
PDF Document	https://ipmdata.ipmcenters.org/documents/pmsps/SEPecan.pdf
Source Type	Pest Management Strategic Plans
Source Date	08/01/2006
Settings	Pecan
Region	Southern
States	Alabama, Georgia, Louisiana, North Carolina, Texas
Contacts	L. Paul Guillebeau, University of Georgia, bugman@uga.edu, (706) 542-9031
Contributors	L. Paul Guillebeau, University of Georgia William Hudson, University of Georgia Gretchen Pettis, University of Georgia Timothy Brenneman, University of Georgia J.W. Christiansen, No Institute Patrick Conner, University of Georgia Jim Dutcher, University of Georgia Ben Goff, University of Kentucky Roy Goodson, No Institute Sidney Lanier, No Institute Wayne Mitchem, North Carolina State University Bill Ree, Texas A&M University Chuck Reilly, USDA Agricultural Research Service (ARS) Randy Sanderlin, Louisana State University Hilton Seigler, Griffin Corporation David Shapiro-Ilan, USDA Agricultural Research Service (ARS) Katherine Stevenson, University of Georgia Bruce Woods, USDA Agricultural Research Service (ARS)

Executive Summary

PDF

https://ipmdata.ipmcenters.org/documents/pmsps/SEPecan.pdf

Settings/Crops

Priorities

Category	Rank	Pest Type	Pest	Crop Stage	Priority
Extension/Outreach	1			6- to 12-Inch Shoot	Weed control manuals for all winter annual weeds.
Extension/Outreach	1	Insects		6- to 12-Inch Shoot	development of a regional IPM website for pecan management as a tool to deliver technology transfer to growers
Extension/Outreach	2			6- to 12-Inch Shoot	Increase presence of weed control information in production guides for all winter annual weeds..
Extension/Outreach	2	Insects		6- to 12-Inch Shoot	increase extension funding for technology transfer
Extension/Outreach	3	Pathogens		6- to 12-Inch Shoot	integrated orchard management carry considerable management costs
Regulatory	1			6- to 12-Inch Shoot	Allow registration of herbicide for use in tree limbs for all winter annual weeds.
Regulatory	1			6- to 12-Inch Shoot	expedite registration of new nematicides and other control tactics as they become available
Regulatory	1	Insects		6- to 12-Inch Shoot	expedite registration of new fungicides and other control tactics as they become available
Regulatory	2	Insects		6- to 12-Inch Shoot	develop and implement a program that will allow researchers to test new chemistries on up to 250 acres prior to full registration
Regulatory	3	Insects		6- to 12-Inch Shoot	encourage regulatory procedures to maintain diversity of chemical disease control options for resistance management to maximize long-term disease control
Research	1			6- to 12-Inch Shoot	Identification of new pre-emergence herbicide alternatives to simazine and diuron. Such alternatives need to have favorable environmental profiles, provide broadspectrum, long, term residual control.
Research	1	Insects		6- to 12-Inch Shoot	influence of cultural practices (nutrition, pruning, hedging) on disease and development
Research	2			6- to 12-Inch Shoot	Woody perennial plants are difficult to control. There is a need for an alternative to glyphosate for controlling undesirable woody perennial plants. Trees can become sensitive to glyphosate applied in late summer and fall. Application time is specific for individual species requiring increased management in orchards where 2 or more perennial weed species are a problem.
Research	2	Insects		6- to 12-Inch Shoot	effectiveness of fungicide resistance management strategies on pecan
Research	3			6- to 12-Inch Shoot	Mistletoe is a parasitic weed that can cause significant yield loss. Control depends on physical removal of infected tree limbs. Limb removal reduces tree productivity.
Research	3	Insects		6- to 12-Inch Shoot	reduced inputs for scab management
Research	4			6- to 12-Inch Shoot	Screen herbicides for mistletoe efficacy and crop tolerance for all winter annual weeds.
Research	4	Insects		6- to 12-Inch Shoot	genetic variability in scab and develop resistant varieties to scab (assessment of genotypes as resources for breeders)
Research	5			6- to 12-Inch Shoot	Investigate the opportunity for biological controls.
Research	5	Insects		6- to 12-Inch Shoot	molecular characterization of scab resistance
Research	6	Insects		6- to 12-Inch Shoot	effect of genotype diversity (host mixtures) by row on reduction of scab (disease management)
Research	7	Insects		6- to 12-Inch Shoot	evaluation of new fungicides on minor crops like pecan
Research	8	Insects		6- to 12-Inch Shoot	improved fungicide application technology for disease management (reduce inputs)
Research	9	Insects		6- to 12-Inch Shoot	evaluation of currently registered strobilurin fungicides for downy spot control
Research	10	Pathogens		6- to 12-Inch Shoot	management of downy spot, in the absence of scab control or on scab resistant varieties
Research	11	Insects		6- to 12-Inch Shoot	timing of fungicide applications for most effective disease control, relative to availability of initial inoculum and host susceptibility
Research	12	Insects		6- to 12-Inch Shoot	evaluation of scab-resistant pecan cultivars for resistance to this and other secondary diseases
Research	13	Insects		6- to 12-Inch Shoot	management options for Phytophthora shuck and kernel rot
Research	14	Insects		6- to 12-Inch Shoot	need data on efficacy of currently registered strobilurins (azoxystrobin, kresoximmethyl, pyraclostrobin), strobilurin mixtures (Stratego), DMI/fentin hydroxide mixtures, ziram, dodine, and dodine/fenbuconazole mixtures on Phytophthora shuck and kernel rot
Research	15	Insects		6- to 12-Inch Shoot	need more quantitative info on economic impact of Phytophthora shuck and kernel rot and yield loss
Research	16	Insects		6- to 12-Inch Shoot	evaluation of scab-resistant pecan cultivars for resistance to this other secondary diseases
Research	17	Insects		6- to 12-Inch Shoot	quantitative effects of sooty mold on pecan yield and production
Research	18	Insects		6- to 12-Inch Shoot	etiology/taxonomy of sooty mold fungi on pecan
Research	19	Insects		6- to 12-Inch Shoot	influence of cultural practices (nutrition, pruning, hedging) on disease development
Research	20	Insects		6- to 12-Inch Shoot	management options for sooty mold

Chemical Controls

Fungicide

Active Ingredient	Description	Brands	CAS	PC	Pests	REI (hrs)	PHI (days)	FRAC
agrobacterium radiobacter strain k1026			Unknown	6474
azoxystrobin			131860-33-	128810
dodine			2439-10-3	44301
fenbuconazole			119611-00-	129011
fentin hydroxide			76-87-9	83601
kocide			20427-59-2	23401
kresoxim-methyl			143390-89-	129111
propiconazole			60207-90-1	122101
sulfur			7704-34-9	77501
thiophanate-methyl			23564-05-8	102001
tpth			76-87-9	83601
trifloxystrobin			141517-21-	129112
ziram			155-04-4	34805

Insecticide

Active Ingredient	Description	Brands	CAS	PC	Pests	REI (hrs)	PHI (days)	IRAC
aldicarb			116-06-3	98301

Timelines