Relationships between Lepidosaphes salicina Attack and Contents of Tannins and Phenolic Acids in Leaves of Different Syringa Species and Cultivars Leaves Screening of Methyl Jasmonate-Insensitive Mutants in Maize THE CONTROLLING EFFECTS OF ANGLED BITTERSWEET OIL ON SOME MAJOR DESTRUCTIVE INSECT FOR VEGETABLES AND STORED GRAINS