Research Article

Acaricidal Activity of Petroleum Ether Extract of Leaves of Tetrastigma leucostaphylum (Dennst.) Alston against Rhipicephalus (Boophilus) annulatus

Figure 1

Tetrastigma leucostaphylum (Dennst.) Alston. (in wild) leaves are simple, defoliate, and trifoliate; all three types were found on the same plant; leaf 0–17 × 0–12; leaflets 4–13 × 2–6 cm; oblong-lanceolate; base cuneate; margin coarsely serrate, especially distally; apex acute; coriaceous; the laterals unequal sided; petiole to 8 cm long; warty-lenticellate; base swollen; petioules 5–14 mm long.