Jul 06, 2011 · Heat the oil in a large skillet over medium-high heat for 1 minute. Reduce the heat to medium and add the onion, cooking until it’s soft and a little brown around the edges, about 5 to 7 minutes, stirring often. Stir in the guava paste, tomato paste, vinegar, brown sugar, star anise, allspice, and curry powder.Naled is the most toxic of the mosquito adulticides and is the only mosquito adulticide in class 1, the highest toxicity, with the signal word "Danger". Naled is the only one that states in its label: inhaling can be FATAL. Naled is corrosive to the skin and eyes and may cause permanent damage. Once in the bloodstream, Naled may cross the placenta.We believein what we do. Insulation Specialties Contracting, Corp. is one of the main specialty contractors in Puerto Rico. For over 35 years we’ve been servicing Puerto Rico, US Virgin Islands (USVI) and British Virgin Islands (BVI).Seal and Protect Your Commercial Flat Roof Puerto Rico Roof Coatings are elastomeric roof coatings that will seal and protuding modified bitumen roofs, smooth builtup roof, gravel built up roof, spray foam, concrete flat roofs, metal roofing, EPDM, single-ply, wood, steel, and most traditional roofing systems.