Spider mites become a real problem on tomatoes when the weather becomes hot. The generation time of the tiny sucking insects becomes as short as four or five days. Spider mites feeding cause the leaves to have a dusty faded look. In severe infestations, tiny webs cover the plant.
exists and is an alternate of. Merge this question into. Split and merge into it. Answer by Isadora Duncan. Confidence votes 51.8K. Anthracite is a teal-grey color but can range anywhere from black, to blue to grey and green. Anthracite is a hard, compact mineral coal that has a high luster and carbon content.
1 ANTHRA-ZINCÂ® is a black pre-weathered surface color. 2  ANTHRA-ZINC should be used with caution near sea shores since the salt in the air will cause the surface aspect of the zinc to lighten over the years.inc Properties. Umicoreâs zinc as a building material is actually an alloy. It is 99.995% pure zinc, produced by an electrolytic process, alloyed with traces of copper and titanium added in controlled quantities. These elements reduce brittleness when cold and increase creep resistance.