Leaf miners are mainly tomato leaffly, pea leafminer and Liriomyza sativae. The larvae are mainly mesophyll cells between the upper and lower epidermis of the foraging leaves, and often form meandering serpentine tunnels on the leaves. Adult feeding and spawning holes also cause certain damage, affecting photosynthesis and nutrient transport. There are multiple generations in a year, and the most serious damage is from May to October. Control methods: Spray the following chemicals 8 to 10 days after the larval pupa peak season: 48% Loester Ben EC 1000-1200 times, or 1.8% E-Fu Ding EC 2000-3000 times, or 5% CPT 1500 to 2000 times liquid, or 1.8% of worm light emulsion 2000 to 3000 times, or 5% of fipronil suspension 2000 to 2500 times, or 75% of ciprofloxacin WP 2000 to 3000 times, 40 % Insect is not 600 to 800 times that of EC, or 40% of it is 600 to 800 times that of EC.
Calcium carbonate is a kind of inorganic compounds, chemical formula optimization for CaCO ₃, commonly known as grey stone, limestone, limestone, marble, etc. Calcium carbonate is neutral, basically insoluble in water, soluble in hydrochloric acid. It is one of the common substances on the earth. It exists in aragonite, calcite, chalk, limestone, marble, travertine and other rocks. It is also the main component of animal bones or shells. Calcium carbonate is also an important building material and is widely used in industry.
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