Scale insects are small flat/domed shaped sap feeding pests which can be seen sitting along the veins on the underside of leaves. There are several species of scale insects soming in many sizes, colours and textures. Different species of scale insects affect both outdoor and indoor plants. The scale insect which affect orchids can often be seen on the underside of the leaves, along the stems and even in the flowers.
Product solution: Spray with Provado Ultimate Bug Killer - aerosol.
Cultural methods: Scale insect can be physically removed by, scraping them of gently with your thumb nail.