Complex sentence: An extract of a species of Australian figwort, "Eremophila", has been shown to repel termites; tests have shown that termites are strongly repelled by the toxic material to the extent that they will starve rather than consume cross treated samples.
Split into simpler sentences: An extract of a species of Australian figwort, "Eremophila", has been shown to repel termites. Tests have shown that termites are strongly repelled by the toxic material to the extent that they will starve rather than consume cross treated samples.