Response of Prickly Sida and Soybeans to Various Herbicides

Weed Science ◽  
1976 ◽  
Vol 24 (2) ◽  
pp. 202-204 ◽  
Author(s):  
Larry S. Jeffery ◽  
John Connell ◽  
Tom McCutchen ◽  
Joseph R. Overton
Keyword(s):  
Glycine Max ◽  
Yield Losses ◽  
Crop Injury ◽  
Naphthylphthalamic Acid ◽  
Sida Spinosa ◽  
Prickly Sida ◽  
Postemergence Herbicides

Three preemergence and four postemergence herbicides were compared for control of prickly sida (Sida spinosaL.) in soybeans (Glycine maxMerrill) and for level of phytotoxicity to soybeans. As a preemergence herbicide, chlorbromuron [3-(4-bromo-3-chlorophenyl)-1-methoxyl-1-methylurea] provided better control of prickly sida than did linuron [3-(3,4-dichlorophenyl)-1-methoxyl-1-methylurea] which was more consistently effective than was naptalam (N-1-naphthylphthalamic acid) plus dinoseb (2-sec-butyl-4,6-dinitrophenol). Chlorbromuron applied as a preemergence treatment caused slight crop injury. In most cases preemergence treatments followed by cultivation were effective in providing season-long control. The descending order of effectiveness for prickly sida control by the postemergence herbicides was: chlorbromuronmetribuzin [4-amino-6-tert-butyl-3-(methylthio)-as-triazine-5(4H)one] > prometryne [2,4-bis(isopropylamino)-6-(methylthio)-s-triazine] > dinoseb. Prometryne as a postemergence treatment following a preemergence herbicide increased prickly sida control more consistently than dinoseb used as the postemergence treatment. However, prometryne caused more crop injury than did dinoseb.Comparison of soybean yields from the weedy and weed free checks show that prickly sida caused only 9 to 14% yield losses in soybeans.

Response of Soybeans (Glycine max) to Planting in Untilled, Weedy Seedbed on Clay Soil

Weed Science ◽  
1983 ◽  
Vol 31 (1) ◽  
pp. 93-99 ◽  
Author(s):  
Larry G. Heatherly ◽  
C. Dennis Elmore
Keyword(s):  
Glycine Max ◽  
Control Systems ◽  
Weed Control ◽  
Mississippi River ◽  
Dry Conditions ◽  
Sida Spinosa ◽  
Seedbed Preparation ◽  
Prickly Sida ◽  
Preemergence Herbicides ◽  
Postemergence Herbicides

Soybeans [Glycine max(L.) Merr.] were planted in an untilled, stale seedbed and conventionally tilled seedbed of Sharkey clay (Vertic Haplaquept) at Stoneville, Mississippi, in 1979 and 1980 to determine the feasibility of the stale -seedbed approach for soybean production in the Mississippi River Delta. Chemical weed control included applications of preplant, preemergence, and postemergence herbicides. Prickly sida (Sida spinosaL.) was the dominant weed in all tillage and weed-control systems. Perennial species were observed at harvest mostly in the stale - seedbed plots. Preemergence herbicides reduced the total weight of weeds per plot. Conventional seedbed preparation caused delays in planting of 3 weeks or more. In the presence of adequate soil moisture, yields of ‘Bedford,’ ‘Tracy’, and ‘Bragg’ cultivars from the stale - seedbed planting and areas that had been treated preemergence were always equal to or greater than yields from the tilled - seedbed plantings and areas that had been treated postemergence. In 1980, the hot, dry conditions of the growing season apparently negated any effect from either earlier planting or preemergence vs. post-emergence weed control.

Benazolin and Admixtures for Common Cocklebur (Xanthium pensylvanicum) and Prickly Sida (Sida spinosa) Control in Soybeans (Glycine max)

Weed Science ◽  
1982 ◽  
Vol 30 (1) ◽  
pp. 50-53 ◽  
Author(s):  
Robert H. Walker ◽  
Eddie R. Jolley ◽  
John A. McGuire ◽  
Don S. Murray
Keyword(s):  
Glycine Max ◽  
Single Application ◽  
Late Season ◽  
Nitrobenzoic Acid ◽  
Naphthylphthalamic Acid ◽  
Sida Spinosa ◽  
Prickly Sida ◽  
Seed Yields ◽  
Over The Top ◽  
Ylacetic Acid

Benazolin (4-chloro-2-oxobenzothiazolin-3-ylacetic acid) formulated as the dimethylamine salt was evaluated for common cocklebur (Xanthium pensylvanicumWallr.) and prickly sida (Sida spinosaL.) control in soybeans [Glycine max(L.) Merr.] between 1977 and 1979. Benazolin was applied alone or in admixtures with acifluorfen {5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid}, bentazon [3-isopropyl-1H-2,1,3-benzothiadiazin-4 (3H)-one 2,2-dioxide], dinoseb (2-sec-butyl-4,6-dinitrophenol) plus naptalam (N-1-naphthylphthalamic acid), and 2,4-DB [4-(2,4-dichlorophenoxy)butyric acid] over-the-top of soybeans {V3 to V12 [V(N); vegetative stage with “N” nodes on the main stem beginning with the unifoliolate node]}. Benazolin effectively controlled common cocklebur at rates of 0.2 and 0.4 kg/ha. Soybean tolerance was acceptable even with a repeat application of 0.4 kg/ha. Early-season (July) control was less than late season (August) because it took 2 to 3 weeks for benazolin to kill common cocklebur. Prickly sida control was poor with benazolin even at 0.6 kg/ha. Soybean tolerance and seed yields were higher when soybeans were treated with admixtures of benazolin plus bentazon than with benazolin alone. Antagonism was observed with this admixture for prickly sida and late-season common cocklebur control. Antagonism was eliminated with ratios of benazolin to bentazon of 1 to 3 applied in a single application or a 1 to 1.5 ratio repeated.

Control of herbicide-resistant common waterhemp (Amaranthus tuberculatus var. rudis) with pre- and post-emergence herbicides in soybean

2007 ◽  
Vol 87 (1) ◽  
pp. 175-182 ◽  
Author(s):  
J. D. Vyn ◽  
C. J. Swanton ◽  
S. E. Weaver ◽  
P. H. Sikkema
Keyword(s):  
Glycine Max ◽  
Photosystem Ii ◽  
Key Words ◽  
Yield Losses ◽  
Common Waterhemp ◽  
Herbicide Resistant ◽  
Glycine Max L ◽  
Amaranthus Tuberculatus ◽  
Postemergence Herbicides ◽  
Weed Emergence

Common waterhemp was first identified in Ontario in 2002. Eight trials were conducted ove r a 3-yr period (2003-2005) at Cottam and Petrolia, Ontario to determine the efficacy of various preemergence and postemergence herbicides for the control of herbicideresistant waterhemp in soybean [ Glycine max (L.) Merr.]. Waterhemp was resistant to the a cetolactate synthase-inhibiting herbicides at both locations and to the photosystem II-inhibiting herbicides at Petrolia; therefore, results varied by location. Results at Petrolia also varied across years. Waterhemp interference resulted in soybean yield losses of up to 73% in weedy versus weed-free checks. Preemergence-applied metolachlor, dimethenamid, and linuron provided greater than 80% control and metolachlor plus metribuzin 94% or greater control of waterhemp 70 d after emergence at both locations. Acifluorfen, fomesafen, imazamox plus fomesafen, and glyphosate applied postemergence resulted in 87% or greater waterhemp control 70 d after application at Cottam in 2003 and 2004 and at Petrolia in 2004; however, waterhemp control with these herbicides was only 60 to 66% at Petrolia in 2005 due to prolonged weed emergence. Multiple herbicide applications per season may be required for effective waterhemp control in soybean. Key words:

scholarly journals Dicamba Retention in Commercial Sprayers Following Triple Rinse Cleanout Procedures, and Soybean Response to Contamination Concentrations

Agronomy ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 772
Author(s):  
Frances B. Browne ◽  
Xiao Li ◽  
Katilyn J Price ◽  
Jianping Wang ◽  
Yi Wang ◽  
...  
Keyword(s):  
Glycine Max ◽  
Dose Response ◽  
Yield Response ◽  
Yield Losses ◽  
Target Movement ◽  
Synthetic Auxin ◽  
Crop Injury ◽  
Glycine Max L

The commercial launch of dicamba-tolerant (DT) crops has resulted in increased dicamba usage and a high number of dicamba off-target movement complaints on sensitive soybeans (Glycine max L.). Dicamba is a synthetic auxin and low dosages as 0.028 g ae ha−1 can induce injury on sensitive soybean. Tank contamination has been identified as one of the sources for unintended sensitive crop exposure. The labels of new dicamba formulations require a triple rinse cleanout procedure following applications. Cleanout efficacy might vary based on the sprayer type and procedure followed. This study was performed to quantify dicamba retention in commercial sprayers and assess the risk for crop injury from remaining contaminants. The results indicate triple rinse with water was comparable to cleanout procedures utilizing ammonium, commercial tank cleaners, and glyphosate in rinses. Dicamba contaminants in final rinsates resulted in <15% visual injury and no yield response when applied to sensitive soybeans at R1 stage. A survey of 25 agricultural sprayers demonstrated a cleanout efficacy of 99.996% by triple rinsing with water following applications of dicamba at 560 g ae ha−1, with concentrations of less than 1 ug mL−1 detected rinsates from the fourth rinse. A dose response experiment predicted dosages causing 5% visual injury and the yield losses were 0.1185 and 2.8525 g ae ha−1. However, symptomology was observed for all tested dosages, including the rate as low as 0.03 g ae ha−1. The results from this study suggest triple rinsing with sufficient amount of water (≥10% of tank volume) is adequate for the removal of dicamba residues from sprayers to avoid sensitive soybean damage. This study can provide producers with confidence in cleanout procedures following dicamba applications, and aid in minimizing risk for off-target movement through tank contamination.

Competition of Velvetleaf, Prickly Sida, and Venice Mallow in Soybeans

Weed Science ◽  
1976 ◽  
Vol 24 (2) ◽  
pp. 224-228 ◽  
Author(s):  
B. J. Eaton ◽  
O. G. Russ ◽  
K. C. Feltner
Keyword(s):  
Glycine Max ◽  
Yield Components ◽  
Soybean Seed ◽  
Abutilon Theophrasti ◽  
Weed Competition ◽  
Soybean Yield ◽  
Hibiscus Trionum ◽  
Sida Spinosa ◽  
Prickly Sida ◽  
Seed Yields

Weed competition in soybeans [Glycine max(L.) Merr. ‘Clark 63′] with planted stands of velvetleaf (Abutilon theophrastiMedic.), prickly sida (Sida spinosaL.), and Venice mallow (Hibiscus trionumL.) is reported. Weeds were planted 0, 10, 20, 30, and 40 days after soybeans and competed until soybeans matured. Soybean seed yields were reduced 720, 250, and 230 kg/ha by velvetleaf, Venice mallow, and prickly sida, respectively. Weeds that emerged with soybeans reduced yields 1,010 kg/ha. Weeds planted 10 days later reduced yields 480 kg/ha, but weeds planted 20 to 40 days after soybeans did not significantly reduced yield. Soybean yields were reduced regardless of weed placement in or between soybean rows. Weed competition reduced numbers of soybean pods per plant more than other soybean-yield components.

Evaluation ofFusarium lateritiumas a Biological Herbicide for Controlling Velvetleaf (Abutilon theophrasti) and Prickly Sida (Sida spinosa)

Weed Science ◽  
1986 ◽  
Vol 34 (1) ◽  
pp. 106-109 ◽  
Author(s):  
C. Douglas Boyette ◽  
H. Lynn Walker
Keyword(s):  
Zea Mays ◽  
Glycine Max ◽  
Field Tests ◽  
Dry Weight ◽  
Abutilon Theophrasti ◽  
Kaolin Clay ◽  
Fusarium Lateritium ◽  
Granule Formulation ◽  
Sida Spinosa ◽  
Prickly Sida

In greenhouse studies,Fusarium lateritiumNees ex Fr. was effective in suppressing the growth of velvetleaf (Abutilon theophrastiMedic. # ABUTH) and prickly sida (Sida spinosaL. # SIDSP). Sprays containing conidia of the fungus and fungus-infested sodium alginate-kaolin clay granules controlled both weeds in corn (Zea maysL.), cotton (Gossypium hirsutumL.), and soybeans [Glycine max(L.) Merr.] without causing a reduction in dry weight of the crops. In field tests, postemergence foliar applications of the fungus controlled velvetleaf and prickly sida 40 and 80%, respectively, in 1982, but controlled only 27 and 34% of velvetleaf and prickly sida, respectively, in 1983. Preemergence applications of the fungus in the granule formulation controlled velvetleaf and prickly sida 46 and 59%, respectively, in 1982. In 1983, this treatment controlled the weeds 35 and 38%, respectively.

scholarly journals Preplant and in‐crop herbicide programs for prickly sida ( Sida spinosa L.) control in soybean

cftm ◽  
2021 ◽  
Author(s):  
Josh T. Copes ◽  
Donnie K. Miller ◽  
Rakesh K. Godara ◽  
James L. Griffin
Keyword(s):  
Sida Spinosa ◽  
Prickly Sida ◽  
Herbicide Programs

Absorption, Translocation, and Metabolism of Foliar-Applied Chlorimuron in Soybeans (Glycine max), Peanuts (Arachis hypogaea), and Selected Weeds

Weed Science ◽  
1989 ◽  
Vol 37 (2) ◽  
pp. 175-180 ◽  
Author(s):  
John W. Wilcut ◽  
Glenn R. Wehtje ◽  
Michael G. Patterson ◽  
Tracy A. Cole ◽  
T. Vint Hicks
Keyword(s):  
Glycine Max ◽  
Ethyl Ester ◽  
Arachis Hypogaea ◽  
Extensive Metabolism ◽  
Species Tolerance ◽  
Prickly Sida

Tolerance of species to foliar applications of the ethyl ester of chlorimuron as determined in greenhouse studies with 21-day-old seedlings was: soybean = peanut > prickly sida > sicklepod > Florida beggarweed > common cocklebur. Absorption of foliar-applied14C-chlorimuron 72 h after application was similar in soybean, peanut, sicklepod, common cocklebur, and prickly sida, but much less in Florida beggarweed. Slight symplasmic and apoplasmic translocation of the herbicide was evident in all species. Metabolism of chlorimuron 72 h after application was greatest in soybean and least in common cocklebur. Species tolerance to chlorimuron was directly correlated (r2= 0.93) to the amount of unmetabolized chlorimuron (dpm/g dry wt) in the plant. Peanut exhibited increased tolerance to chlorimuron with age; this result was attributed to reduced absorption and translocation and more extensive metabolism of the absorbed herbicide by older plants.

Comparative Water Relations, Photosynthesis, and Growth of Soybean (Glycine max) and Seven Associated Weeds

Weed Science ◽  
1983 ◽  
Vol 31 (3) ◽  
pp. 318-323 ◽  
Author(s):  
David T. Patterson ◽  
Elizabeth P. Flint
Keyword(s):  
Glycine Max ◽  
Water Relations ◽  
Dry Matter ◽  
Stomatal Closure ◽  
Growth Dynamics ◽  
Dry Matter Production ◽  
Matter Production ◽  
Net Assimilation ◽  
Prickly Sida ◽  
Smooth Pigweed

Growth dynamics, water relations, and photosynthesis of soybean [Glycine max(L.) Merr. ‘Ransom’], common cocklebur (Xanthium pensylvanicumWallr.), jimsonweed (Datura stramoniumL.), prickly sida (Sida spinosaL.), sicklepod (Cassia obtusifoliaL.), smooth pigweed (Amaranthus hybridusL.), spurred anoda [Anoda cristata(L.) Schlect.], and velvetleaf (Abutilon theophrastiMedic.) were compared in a controlled-environment greenhouse programmed for 32C day and 23C night temperatures. Net photosynthetic rates, net assimilation rates, and water-use efficiency on a whole-plant or single-leaf basis were greatest in the C4-plant, smooth pigweed. Total dry-matter production at 29 days after planting was greatest in common cocklebur and least in jimsonweed. Interspecific differences in dry-matter production were highly positively correlated with leaf area duration and negatively correlated with net assimilation rate. Threshold leaf water-potential levels causing stomatal closure varied among species. The stomata of jimsonweed were the most sensitive to water stress and those of prickly sida were the least sensitive.

Wild-Proso Millet (Panicum miliaceum) Control in Soybeans (Glycine max) With Postemergence Herbicides

1990 ◽  
Vol 4 (2) ◽  
pp. 420-424 ◽  
Author(s):  
R. Gordon Harvey ◽  
Donald J. Porter
Keyword(s):  
Glycine Max ◽  
Panicum Miliaceum ◽  
Late Season ◽  
Proso Millet ◽  
Postemergence Herbicides

Selective postemergence herbicides were applied broadcast to control wild-proso millet in soybeans early postemergence (early post), postemergence (post), and late postemergence (late post) when wild-proso millet was 2 to 8 cm tall, 3 to 15 cm tall, and 3 to 31 cm tall, respectively. CGA-82725, fluazifop, haloxyfop, and sethoxydim applied early post controlled 75% or less late-season wild-proso millet. Interrow cultivation following early post fluazifop applications improved wild-proso millet control and soybean yields. Higher rates of CGA-82725, haloxyfop, and sethoxydim applied post controlled 91 to 98% late-season millet, but resulting soybean yields were less than the hand-weeded check. Fenoxaprop, fluazifop, fluazifop-P, haloxyfop, quizalofop, and sethoxydim applied late post provided 93 to 99% late-season millet control and soybean yields equal to hand-weeded checks. Wild-proso millet emerging after early post or post herbicide applications contributed to reduced effectiveness from those treatments. However, most wild-proso millet emerged before late post applications and were controlled. Other herbicides including BAS-51702, clethodim, cloproxydim, and SC-1084 applied late post also controlled wild-proso millet in soybeans.

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