Tree World PS-5L-Case Plantskydd Case 1.3 gal RTU Jug - Case of 3 Plantskydd stimulates a fear-based response which will have animals looking for somewhere else to Plantskydd&apos;s long-term effectiveness is attributable to the tenacity of its 100% natural&#44; 1.3 gal. / 5 litre. Ready-To-Use Jug. treats 400 - 600 plants 1 ft. high.