Table 3.

Allelopathic Activities of Terpenes in Agriculture.

Name of Terpene	Plant	Activity	Reference
Momilactone A	Oryza sativa, Arabidopsis, alfalfa, lettuce, cress, timothy, barnyard grass, E. colonum, crabgrass	Momilactones are generally not toxic to rice plants but mainly inhibit germination and growth of other seeds, e.g., barnyard grass Enhances plants to outcompete other field crops by roots exudates serving as inhabitants, especially Momilactones A and B	[120,140,141,142]
Momilactone B
Momilactone C
Momilactone D
Momilactone E
Carvone, Betulin	Amaranthus retroflexu, Sinapis arvensis	Exhibits high inhibition against common weeds at a lower concentration	[143]
Limonene and (+)-citronellal	Transgenic Arabidopsis thaliana	Exhibits vigorous antimicrotubule activity in transgenic Arabidopsis thaliana	[144]
Lanast-7,9(11)-dien-3α, 15α-diol-3α-D-glucofuranoside	Oryza sativa	Growth inhibition	[145]