scholarly journals Methyl Bromide Alternatives for Control of Root-knot Nematode (Meloidogyne spp.) in Tomato Production in Florida

2017 ◽  
Vol 49 (2) ◽  
pp. 140-149 ◽  
Author(s):  
JOHAN DESAEGER ◽  
DONALD W. DICKSON ◽  
S. J. LOCASCIO
Keyword(s):  
Methyl Bromide ◽  
Root Knot Nematode ◽  
Tomato Production ◽  
Methyl Bromide Alternatives ◽  
Meloidogyne Spp

Methyl Bromide Alternatives for Root-Knot Nematodes Control in Tobacco Transplant Production

2013 ◽  
Vol 807-809 ◽  
pp. 2071-2074
Author(s):  
Cheng Sheng Zhang ◽  
Fan Yu Kong ◽  
Yu Qin Zhang ◽  
Jing Wang
Keyword(s):  
Nicotiana Tabacum ◽  
Methyl Bromide ◽  
Field Studies ◽  
Shandong Province ◽  
Root Knot Nematodes ◽  
Plant Vigor ◽  
Methyl Bromide Alternatives ◽  
Meloidogyne Spp ◽  
Metham Sodium

Field studies were conducted to evaluate potential methyl bromide alternatives against nematods in tobacco (Nicotiana tabacum L.). Metham-sodium and dazomet were evaluated respectively under a polyethylene cover as alternatives for methyl bromide in tobacco transplant production over a two-year period (2009-2010). One genera or species of nematodes, tobacco root-knot nematod (Meloidogyne spp.), was evaluated in Qingzhou, Shandong province of China. All of the fumigant candidates were successful in controlling the pest. Another Parameter, plant vigor, was measured too. Metham-sodium 60g/m2, dazomet 80g/m2 and methyl bromide were not significantly different (P=0.05) from each other in the parameters evaluated. Results of this study indicate that Metham-sodium and dazomet are potential methyl bromide alternatives available to growers for use in tobacco parasite nematods control.

scholarly journals Economic Evaluation of Methyl Bromide Alternatives for the Production of Tomatoes in North Carolina

2008 ◽  
Vol 18 (4) ◽  
pp. 705-713 ◽  
Author(s):  
Olha Sydorovych ◽  
Charles D. Safley ◽  
Rob M. Welker ◽  
Lisa M. Ferguson ◽  
David W. Monks ◽  
...  
Keyword(s):  
North Carolina ◽  
Methyl Bromide ◽  
Soil Treatment ◽  
Tomato Production ◽  
Metam Sodium ◽  
Production Region ◽  
Methyl Bromide Alternatives ◽  
Budget Analysis ◽  
Technical Issues ◽  
Treatment Alternatives

Partial budget analysis was used to evaluate soil treatment alternatives to methyl bromide (MeBr) based on their efficacy and cost-effectiveness in the production of tomato (Solanum lycopersicum). The analysis was conducted for the mountain tomato production region based on 6 years of field test data collected in Fletcher, NC. Fumigation alternatives evaluated included 61.1% 1,3-dichloropropene + 34.7% chloropicrin (Telone-C35™), 60.8% 1,3-dichloropropene + 33.3% chloropicrin (InLine), 99% chloropicrin (Chlor-o-pic), 94% chloropicrin (TriClor EC), 42% metam sodium (4.26 lb/gal a.i., Vapam), and 50% iodomethane + 50% chloropicrin (Midas). The MeBr formulation was 67% methyl bromide and 33% chloropicrin (Terr-O-Gas). Chloropicrin applied at 15 gal/acre provided the greatest returns with an additional return of $907/acre relative to MeBr. Telone-C35 provided an additional return of $848/acre and drip-applied metam sodium provided an additional return of $137/acre. The return associated with broadcast applied metam sodium was about equal to the estimated return a grower would receive when applying MeBr. Fumigating with a combination of chloropicrin and metam sodium; shank-applied chloropicrin at 8 gal/acre; drip-applied chloropicrin, Midas, or InLine; and the nonfumigated soil treatment all resulted in projected losses of $156/acre, $233/acre, $422/acre, $425/acre, $604/acre, and $2133/acre, respectively, relative to MeBr. Although technical issues currently associated with some of the MeBr alternatives may exist, results indicate that there are economically feasible fumigation alternatives to MeBr for production of tomatoes in North Carolina.

scholarly journals METHYL BROMIDE ALTERNATIVES IN FRESH MARKET TOMATO PRODUCTION

HortScience ◽  
1996 ◽  
Vol 31 (5) ◽  
pp. 759a-759
Author(s):  
Christopher L. Ray ◽  
Sandra B. Wilson ◽  
Kathy H. Brock ◽  
Bruce A. Fortnum ◽  
Dennis R. Decoteau
Keyword(s):  
Methyl Bromide ◽  
Control Strategies ◽  
Agricultural Practices ◽  
Fresh Market ◽  
Marketable Yield ◽  
Tomato Production ◽  
Methyl Bromide Alternatives ◽  
Environmentally Sound ◽  
Chemical Pesticides ◽  
Polyethylene Mulch

Pest management is of primary importance to the vegetable industry in our nation. In recent years producers have undergone much scrutiny concerning their pest control strategies, which often include the use of chemical pesticides. Due to the detrimental effects of many fumigants, growers are being forced to incorporate more environmentally sound agricultural practices while still producing a healthy, marketable commodity. The effects of three different fumigants and reflective mulches on plant growth and development were studied in field-grown, staked tomatoes. Methyl bromide, Telone II, or Telone C-17 were used in fumigation of plots. The establishment of mulch color was done via applications of exterior enamel paint, white or red in color, to the surface of black polyethylene mulch. With the exception of total marketable yields, no interactions existed between mulch color and fumigant. Red mulch and Telone II treatments resulted in the highest total marketable yield. Telone II application increased early marketable yield. White mulch color increased preharvest yield and black mulch color decreased early marketable yield. Low initial populations of nematodes may be the cause for lack of response due to fumigation.

scholarly journals Assessing the predatory activity of Arthrobotrys oligosporus strain C-2197 as biocontrol of the root-knot nematode Meloidogyne spp.

Bionatura ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 1586-1592
Author(s):  
Adela Quevedo ◽  
Marcos Vera-Morales ◽  
Fernando Espinoza-Lozano ◽  
Rafael F. Castañeda-Ruiz ◽  
Daynet Sosa del Castillo ◽  
...  
Keyword(s):  
Production Systems ◽  
Tropical Dry Forest ◽  
Field Tests ◽  
Dry Forest ◽  
Root Knot Nematode ◽  
Tomato Production ◽  
Predatory Activity ◽  
Meloidogyne Spp ◽  
Growth Promoting

The root-knot nematode, Meloidogyne spp., is an endoparasite that infects plants' root system and causes yield losses in several important crops. Meloidogyne is one of the most devastating pests, so searching for effective biological agents is needed to mitigate its damage. In this study, the predatory activity of Arthrobotrys oligosporus Fresen strain C-2197, obtained from a tropical dry forest of Ecuador, was evaluated as a biocontrol alternative for root-knot caused by Meloidogyne spp. Our results showed that A. oligosporus C-2197 has predatory activity against juvenile nematodes, 72.31%, and 79% efficacy, for in vitro and greenhouse conditions. Besides, the studied strain showed growth-promoting activity, increasing leaf and root area of inoculated plants. Growth promoting activity was also observed in field tests. The present study validates the potential use of A. oligosporus as a biocontrol of Meloidogyne spp. in tomato production systems under greenhouse. It also presents useful information on the use of different cultivation media and substrates for massive A. oligosporus spore concentrates.

Interaction of Meloidogyne hapla and Verticillium dahliae, and the chemical control of wilt in strawberry

1970 ◽  
Vol 10 (45) ◽  
pp. 493 ◽  
Author(s):  
JW Meagher ◽  
PT Jenkins
Keyword(s):  
Broad Spectrum ◽  
Verticillium Dahliae ◽  
Methyl Bromide ◽  
Chemical Control ◽  
Soil Fumigation ◽  
Meloidogyne Hapla ◽  
Root Knot Nematode ◽  
Methyl Isothiocyanate ◽  
Severity Of Disease ◽  
Verticillium Dahliae Kleb

In a field experiment with strawberries, pre-plant treatments with broad-spectrum fumigants methyl bromide-chloropicrin (450 kg/ha) or methyl isothiocyanate-dichloropropene (500 l/ha) (and 300 l/ha) controlled wilt caused by Verticillium dahliae Kleb and resulted in increased yields. Soil fumigation with the nematicide ethylene dibromidz (105 l/ha) also improved yields. It controlled the root-knot nematode (Meloidogyne hapla Chitwood), delayed the onset of wilt symptoms and reduced the severity of disease. This indicated a nematode-fungus interaction and is the first report of a Meloidogyne-Verticillium interaction in strawberry.

Genetic diversity of Meloidogyne spp. parasitising potato in Brazil and aggressiveness of M. javanica populations on susceptible cultivars

Nematology ◽  
2017 ◽  
Vol 19 (1) ◽  
pp. 69-80 ◽  
Author(s):  
Israel L. Medina ◽  
Cesar B. Gomes ◽  
Valdir R. Correa ◽  
Vanessa S. Mattos ◽  
Philippe Castagnone-Sereno ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Rapd Markers ◽  
Potato Production ◽  
Potato Cultivars ◽  
Root Knot Nematode ◽  
Root Knot Nematodes ◽  
Nematode Reproduction ◽  
Meloidogyne Spp ◽  
Prevalent Species ◽  
Reproduction Factor

Root-knot nematodes (Meloidogyne spp.) significantly impact potato production worldwide and in Brazil they are considered one of the most important group of nematodes affecting potatoes. The objectives of this study were to survey Meloidogyne spp. associated with potatoes in Brazil, determine their genetic diversity and assess the aggressiveness of M. javanica on two susceptible potato cultivars. Fifty-seven root-knot nematode populations were identified using esterase phenotyping, including Meloidogyne javanica, M. incognita, M. arenaria and M. ethiopica. Overall, root-knot nematodes were present in ca 43% of sampled sites, in which M. javanica was the most prevalent species, and the phenotypes Est J3, J2a and J2 occurred in 91.2, 6.7 and 2.1% of the positive samples, respectively. Other species, such as M. incognita, M. arenaria and M. ethiopica, were found less frequently and occurred at rates of 6.4, 4.3 and 2.1% of the samples, respectively. Sometimes, M. javanica was found in mixtures with other root-knot nematodes in ca 10.6% of sites containing Meloidogyne. After confirming the identification of 17 isolates of M. javanica and one isolate each of M. incognita, M. arenaria and M. ethiopica by SCAR markers, the populations were used to infer their genetic diversity using RAPD markers. Results revealed low intraspecifc genetic diversity among isolates (13.9%) for M. javanica. Similarly, M. javanica sub-populations (J2a) clustered together (81% of bootstrap), indicating subtle variation from typical J3 populations. The aggressiveness of four populations of M. javanica from different Brazilian states on two susceptible potato cultivars was tested under glasshouse conditions. Results indicated differences in aggressiveness among these populations and showed that potato disease was proportional to nematode reproduction factor.

scholarly journals Evaluation of Allyl Isothiocyanate as a Soil Fumigant for Tomato (Lycopersicon esculentum Mill.) Production

Plant Disease ◽  
2019 ◽  
Vol 103 (11) ◽  
pp. 2764-2770 ◽  
Author(s):  
Jialin Yu ◽  
Gary E. Vallad ◽  
Nathan S. Boyd
Keyword(s):  
Lycopersicon Esculentum ◽  
Allyl Isothiocyanate ◽  
Cyperus Rotundus ◽  
Parasitic Nematodes ◽  
Tomato Production ◽  
Purple Nutsedge ◽  
Lycopersicon Esculentum Mill ◽  
Equivalent Control ◽  
Control Versus ◽  
Meloidogyne Spp

Fusarium wilt (Fusarium oxysporum f. sp. lycopersici), root-knot nematodes (Meloidogyne spp.), and purple nutsedge (Cyperus rotundus L.) are among the most damaging soilborne pests for tomato (Lycopersicon esculentum Mill.) production in the southeastern United States. Allyl isothiocyanate (allyl ITC) was evaluated as a potential fumigant alternative for control of soilborne pathogens, nematodes, and weeds. Shank- or drip-injected allyl ITC at rates ranging from 221 to 367 kg ha−1 exhibited excellent performance, reducing the recovery of total F. oxysporum from treated soils. Shank- or drip-injected allyl ITC at 367 kg ha−1 provided equivalent control of C. rotundus compared with 1,3-dichloropropene + chloropicrin and metam potassium, respectively. Totally impermeable film (TIF) did not further reduce the recovery of F. oxysporum and various nematodes from soil treated with allyl ITC compared with virtually impermeable film (VIF). However, TIF mulch significantly improved C. rotundus control versus shank- or drip-injected allyl ITC treatments under VIF mulch. Overall, allyl ITC is an effective methyl bromide alternative against F. oxysporum, C. rotundus, and plant-parasitic nematodes Criconemella spp. and Hoplolaimus spp. in plasticulture tomato production.

scholarly journals USING BIOPESTICIDES FOR THE MANAGEMENT OF ROOT-KNOT NEMATODE, MELOIDOGYNE SPP. ON POTATO

2019 ◽  
Vol 4 (3) ◽  
pp. 119-120
Author(s):  
Zeinab A. El- Bermawy ◽  
M. E. M. Sweelam ◽  
Sanaa S. Kabeil
Keyword(s):  
Root Knot Nematode ◽  
Meloidogyne Spp
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