Termite Fumigation in California Is Fueling the Rise of a Rare Greenhouse Gas

The insecticide sulfuryl fluoride isn’t included in federal or state emissions reduction goals.

5 Sulfur Fluoride Exchange (SuFEx)

Sulfur Fluoride Exchange (SuFEx) click chemistry is a new generation technology for creating stable molecular connections with absolute reliability under metal-free conditions. SuFEx builds upon the fundamental principles of click chemistry by exploiting a unique blend of stability and latent reactivity of high oxidation state sulfur fluoride [e.g., S(VI)] functionalities to forge stable covalent linkages at connective SuFEx hubs. In this review, we focus mainly on the SuFEx hubs, sulfuryl fluoride (SO2F2), thionyl tetrafluoride (SOF4), ethenesulfonyl fluoride (ESF), 1-bromoethene-1-sulfonyl fluoride (BESF) and, 2-substituted alkyne-1-sulfonyl fluorides (SASFs). We describe each connector’s unique reactivity and their application to SuFEx click chemistry.

PRESERVING INDONESIAN JOURNALISM HISTORY AT NATIONAL PRESS MONUMENT

Objective. The National Press Monument is a part of the Indonesian Ministry of Communication and Information (KOMINFO) which has the sole responsibility of developing the communication and information sectors of the government including media and journalism. This research explains the preservation process of the Indonesian Journalism newsprint implemented at the National Press Monument. The purpose of this study is to give an overview of the importance of Indonesian Journalism newsprint to users of the National Press Monument. Indonesian Journalism newsprint is a vital source containing Indonesia’s press history and information about the Indonesian Journalist Association before Indonesia gained its independence. National Press Monument collects and preserves old Indonesian newsprint and journals on various subjects. Methods. The qualitative approach and observation methods are used for this research. The observation method is used to focus on the preservation practices. Alongside the observation, the technique is the application of in-depth interviews. These methods are used to explain the processes of newsprint preservation. Results. The results of the study have found that National Press Monument used four approaches to preserve newsprint material: preventive, curative, restorative, and digitalization. Preventive action is carried out by controlling temperature, humidity, light, preventing human-caused damage and conducting bookbinding action. The curative operation was done by fumigation using Sulfuryl Fluoride (S02F2). The restorative step is done by connecting parts of torn/perforated paper, and repairing damaged binding. Finally, digitalization. National Press Monument also developed a new method to preserve newsprint material which is called freezing. This new method is aimed to protect the manuscript from any harmful organism. Conclusions. These methods can also be used in libraries. The National Press Monument not only contributes to preserving newsprint material in Indonesia but also to develop new ways in protecting the manuscripts through various policies.

Tomato tolerance and purple nutsedge control with sulfuryl fluoride mixes

Sulfuryl fluoride (SF) is currently utilized as a fumigant for control of drywood termites and insects in building structures, vehicles, wood products, post-harvest commodities, and food processing facilities. This research investigated the feasibility of using SF as a preplant soil fumigant for Purple nutsedge control in plastic-mulched tomato production. SF treatments included SF injected through drip tapes or SF injected through drip tapes a few hours following shank injection of chloropicrin (Pic). Results revealed that SF alone at 224, 336, or 448 kg ha−1 was generally less effective compared to when it was applied in conjunction with Pic at 168 kg ha−1. SF alone provided inconsistent control of purple nutsedge. In contrast, SF plus chloropicrin (Pic) (SF + Pic) was as efficacious or more efficacious on purple nutsedge than the industry standards including 1,3-dichloropropene (1,3-D) plus Pic (1,3-D + Pic) and metam potassium. None of the fumigant treatments visually injured tomato plants, stunted growth, or adversely affected tomato yield. In one of the four tomato seasons, tomato plants growing in plots fumigated with SF + Pic resulted in taller tomato plants and higher markable yields. Results indicate that soil fumigation with SF + Pic is safe on plastic-mulched tomato and effectively controls purple nutsedge.