Check your jasmine leaves for symptoms of spider mites. Affected leaves often have a speckled appearance or develop a bronzed or yellow cast. Heavily infested plants often suffer from premature leaf drop.
Look for webbing on the undersides of leaves. Many spider mite species produce webbing to protect themselves and their eggs from predators. The webbing looks like fine silk and typically appears dirty because it collects dust.
Trim and remove heavily infested jasmine plant leaves. Bag them up and throw them in the trash or burn them immediately to prevent the spider mites from spreading.
Cut severely infested jasmine plants to the ground after the blooming period. Discard of infested material immediately. Water and apply fertilizer to the pruned jasmine plant to encourage the growth of new, healthy tissue.
Use biological controls to rid your jasmine plant of spider mites. Colorado State University Extension suggests purchasing and using lady beetles called "spider mite destroyers" for the best results. Predatory thrips and minute pirate bugs also feed on the spider mites.
Spray infested outdoor jasmine plants with your garden hose. Strong streams of water typically knock spider mites off of plants. Hosing down your jasmine plants regularly also removes any eggs as well as the webbing that might prevent the predators from reaching the mites. Spray your plants about once a week while the spider mites persist.
Rinse off infested indoor jasmine plants in your kitchen sink or shower. Wipe down the leaves of larger plants with a soft, wet cloth. Repeat this process weekly for as long as the spider mites occur.
Use insecticidal soaps on your infested jasmine plant. Follow the instructions on the manufacturer's label. Thoroughly wet the plant, including the undersides and within curled up leaves.
Use a miticide on your infested jasmine plants. Miticides are specifically designed to kill spider mites. Follow the instructions on the product's label. Avoid using other forms of insecticides because they typically don't work very well and might kill the biological controls.