Many vegetable farmers often overlook the required waiting period when applying **pesticides** to control pests and diseases, leading to excessive **pesticide residues** in the vegetables that reach the market. To ensure food safety, there are specific guidelines for pesticide use before vegetables are listed for sale. Here is a summary of the recommended intervals:
First, for **fungicides**, the following application intervals are advised:
- 75% chlorothalonil WP can be applied up to 7 days before harvest.
- 77% mancozeb WP should be used 3 to 5 days prior.
- 50% phoramin WP is safe to apply 4 to 7 days before.
- 70% thiophanate-methyl WP should be used 5 to 7 days in advance.
- 50% Nong Li Ling wettable powder requires 4 to 5 days before.
- 50% Garry and 58% Ridomil Manganese Zinc WP can be applied 2 to 3 days before.
- 64% anti-virus ferrous sulfate WP should be used 3 to 4 days ahead.
Second, for **insecticides**, the waiting periods vary:
- 10% cypermethrin emulsifiable concentrate should be applied 2 to 5 days before harvest.
- 2.5% bromopropylate can be used 2 days in advance.
- 2.5% kungfu emulsifiable concentrate is safe for 7 days before.
- 5% Fuling emulsifiable concentrate requires 3 days before.
- 5% anti-Puwei WP should be applied 6 days prior.
- 1.8% Aifuguang emulsifiable oil needs 7 days before.
- 10% killing enemy emulsifiable oil is safe for 3 days before.
- 40.7% lesbian emulsifiable concentrate should be used 7 days in advance.
- 20% eliminating emulsified emulsifiable concentrate requires 3 days before.
- 20% fenvalerate emulsifiable concentrate is safe for 5 days before.
- 35% fenthion should be applied 7 days before.
- 20% fenpropathrin emulsifiable concentrate is safe for 3 days before.
- 10% mazonic emulsifiable concentrate needs 7 days before.
- 25% quetiaphos emulsifiable concentrate should be used 9 days in advance.
- 50% anti-converse WP requires 6 days before.
- 5% more eucalyptus WP is safe for 7 days before.
Third, for **acaricides**, the following intervals are recommended:
- 50% bromodecyl ester cream should be applied 14 days before harvest.
- 50% tork WP is safe for 7 days before.
These guidelines are essential for reducing harmful residues and ensuring that vegetables meet safety standards before reaching consumers. Farmers are strongly encouraged to follow these intervals strictly to maintain both crop health and public safety.
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