Where to learn more. Messages 5,070 Reaction score 14,791 Location Houston, TX USDA Zone 9A Sep 1, 2016 #41 Here it is. Don’t eat it if you cannot stop. More information on calcium thiosulfate production has been described in a patent registered by Hajjatie et al. Only people with pesticide licenses can buy restricted-use products. In my experience it is a very effective dormant spray for roses and fruit trees and bramble berry crops, and has some nutrient value when washed by rain into soils. The lime sulfur treats fungal spores, … I sprayed my roses before I covered them with manzate. It seems much safer to me. Eat Carob instead! Lime Sulfur, nor Lime Sulfur following Oil, in foliage period. How to Use Lime-Sulfur Spray. Wear rubber gloves so your hands won't stink and wear eye protection, especially when diluting the concentrate. I talked to a very nice customer service representative at Bonide who informed me that it has been banned by the EPA and it is illegal to manufacture it in the U.S. What should I use instead? Dichlofluanid, tolylfluanid, and captan are likewise contact multiple-site … I don't know why Bonide appears to have suspended its production of lime sulfur, but I don't think it's because lime sulfur per se has been banned for use as a horticultural pesticide by the EPA. Neither are persistent, and are therefore safe when used properly. Be that as it may, the combination of dormant oil and lime sulfur, which can be found at any garden centre, is not a banned product. Here is a link that might be useful: Garden Musings blog. Due to suicides using Lime sulfur and Strong acid to produce Hydrogen Sulfide. Sulfur and lime sulfur are also protectant. Around here we have to prune to the ground So lime sulfur won't help anyway. I am thinking to just use my regular copper fungicide in a slightly higher concentration while the plants are dormant in combination with a dormant oil spray. The only alternative for the above applications mentioned in the leaflet is thiophanate-methyl (Halt), but its manufacturer's web site cautions against its use on fruit trees. Transferring this formula to the metric system and using a total volume as 100 L of purified water to this we will add 19.172 kg of sulphur and 8.627 kg of calcium hydroxide. Avoid using lime that is less than 90% pure. of quicklime, and 50 gal. Localised corrosion by the reduced species of sulfur can be dramatic, even the mere presence of elemental sulfur in contact with metals is enough to corrode them considerably, including so-called stainless steels. Even though this bulletin is from Washington State University it still is relevant to Oregon. I will use manzate again after I prune in the spring.Of course when you prune you cut off cane containg spores on them. In my area Lime Sulfur is hard to use. No. Here is a link that might be useful: EPA decision on Lime Sulfur. Thread starter Mike Corazzi; Start date Jul 22, 2016; Prev. of sulfur, 36 lb. Hajjatie et al. Any thoughts on this or suggestions? I have included this link for your information. Undiluted lime sulfur is corrosive to skin and eyes and can cause serious injury like blindness. If you are worried about the negative effects of lime sulfur, do not make it. To stop the clogging, make your solution with HOT water. I have chosen to use copper and oil the last few years with good results. (2006) wrote the lime sulfur reaction in various ways depending on the degree of polymerisation of calcium polysulfides, but the following reaction is probably the simplest of their series: They also managed to successfully control this reaction to achieve the conversion of elemental sulfur in a quasi pure solution of calcium thiosulfate. Keep agitated during spraying. Lime sulfur solutions are strongly alkaline (typical commercial concentrates have a pH over 11.5 because of the presence of dissolved sulfides and hydroxide anions), and are harmful for living organisms and can cause blindness if splashed in the eyes. Lime sulfur is sold as a spray for deciduous trees to control fungi, bacteria and insects living or dormant on the surface of the bark. Without paint pigments, the lime-sulfur solution bleaches wood to a bone-white color that takes time to weather and become natural-looking. Lime-sulfur spray, or liquid calcium polysulfide, controls both insects and fungi on roses, fruit trees, berry plants and other ornamental and edible garden plants. Go. If it was banned the EPA would be all over them. If the quicklime is 85%, 90%, or 95% pure, use 101 g/L, 96 g/L, or 91 g/L; if impure hydrated lime is used, similarly increase its quantity. How and to Use Lime Sulfur. Try a vet supply outlet if you can't find it at your garden center. Lime sulfur had been used for years to control fungi on roses, fruit trees and ornamentals. Josephine County Oregon. Today, lime sulfur is still used in smaller fields, although it is no longer used in commercial farms. As an alternative to Lime Sulfur is Horticultural Oil which can be purchased from your neighborhood nursery or any store that has a good garden … The alkylenebisidithiocarbamates (EBDCs), e.g., mancozeb, became commercially viable in the 1960s and are essentially surface-acting protectant fungicides. The exact chemical reaction leading to the synthesis of lime sulfur is poorly known and is generally written as: as reported in a document of the US Department of Agriculture (USDA).[2]. The here above reaction resembles a disproportionation reaction. Gloves, goggles, face masks and protective clothing must be worn as the pesticide is very irritating to the eyes, skin and respiratory passages. google search click here 8/30/16. USE DIRECTIONS Spray to cover foliage until wet. This vague reaction is puzzling because it involves the reduction of elemental sulfur and no reductant appears in the above mentioned equation while sulfur oxidation products are also mentioned. No. In early 2008, EPA questioned whether lime sulfur was so caustic that it should be reclassified as a restricted-use chemical. Lime sulfur burns leaves and so cannot be sprayed on evergreen plants or on plants still bearing green leaves in the high seasons. The manager of my local Armstrong Nursery says they do not carry lime sulphur anymore and cannot get any. Lime sulfur is not banned by the EPA. Evidently, reregistration of an individual product containing lime sulfur, such as Bonide's, costs money and Bonide chose to not pay the fee. However, elemental sulfur can undergo a disproportionation reaction, also called dismutation. However, lime-sulfur spray has now been withdrawn from the market by the manufacturers. A mass of hot water will retain its heat for the time it takes you to spray it and as the aerosol passes through the air it will cool before it hits its target. Van Slyke, A.W. Do not apply this product through any type of irrigation system. In 1886 it was first used in California to control San Jose scale. (Don't mix it with acids). The oil smothers overwintering insects or eggs. Copper-based … How to avoid lime sulfur. Do not use the product, if buying commercially. I do know lime sulphur spray is not harmless. Seems to me that even spraying horticultural oil could be bad for lungs. I don't bother with dormant sprays either.But, I hope you get this situation sorted and find outwhat the real facts are on this subject.Others would probably like to know. In this area it's best to apply it after winter pruning. This last reaction is consistent with the global lime sulfur reaction mentioned in the USDA document. Lime Sulfur Dip vs. "Bonsai Lime Sulfur" I purchased both through Amazon. Lime sulfur is not banned by the EPA. Crop Production, https://en.wikipedia.org/w/index.php?title=Lime_sulfur&oldid=990061784, Short description is different from Wikidata, Articles lacking in-text citations from October 2015, Articles needing additional references from October 2015, All articles needing additional references, Articles with multiple maintenance issues, Creative Commons Attribution-ShareAlike License, This page was last edited on 22 November 2020, at 16:05. Dormant oil and lime sulfur should be mixed according to the directions on the package and used in a pump sprayer. In 2005, lime sulfur was approved for reregistration (see link, below). However, lime sulfur has seen a decline in popularity due to the extensiveness of its application. I also thought it had been banned. Calcium polysulfide when diluted is stinky, effective, and relatively safe for humans. Bosworth, & C.C. 6 Responses. Has the GOOD lime/sulfur been banned in California? It is massed produced by one of the largest chemical companies in the world. Title: 325-Lime Sulfur (Page 1) Author: Mark J Mauer Created Date: 3/3/2000 7:29:00 … However, in recent years they have been closely scrutinized on toxicological grounds and their use is now restricted in some countries. So I don't use it. DO NOT apply during growing period to Apricots, Peaches or other Sulfur sensitive plants.