The anthraquinone aldehyde nordamnacanthal ( 1, 3-dihydroxy-anthraquinone-2-al ) present in " G . aparine " has an antifeedant activity against " Spodoptera litura ", the Oriental leafworm moth, a species which is considered an agricultural pest.
12.
Taxodone and its oxidized rearrangement product, taxodione, are diterpenoid quinone methides found in " Taxodium distichum " ( bald cypress ), " Rosmarinus officinalis " ( rosemary ), several " Salvia " species and other plants, that display anticancer, antibacterial, antioxidant, antifungal, insecticide, and antifeedant activities.
13.
Initially found to be active as a feeding inhibitor towards the desert locust ( " Schistocerca gregaria " ), it is now known to affect over 200 species of insect, by acting mainly as an antifeedant and growth disruptor, and as such it possesses considerable toxicity toward insects ( LD 50 ( " S . littoralis " ) : 15 ?g / g ).
