The average temperature over the next 14 days is forecast to be 22Â°C (72Â°F) and there will be 3 days of sunshine. The average for October is 18Â°C (64Â°F) in Salou. The warmest day over the next 25 days in Salou is forecast to be 23rd October at 26Â°C (79Â°F) and the warmest night on 24th October at 18Â°C (64Â°F).
Insect growth regulator. An insect growth regulator (IGR) is a substance (chemical) that inhibits the life cycle of an insect. IGRs are typically used as insecticides to control populations of harmful pests, such as cockroaches or fleas. Contents.
Plant Hormones and Plant Growth Regulators. Another factor in plant growth is the influence of plant hormones. Hormones are chemicals produced by plants that regulate the growth processes. Plant growth regulators are chemicals applied by a horticulturist to regulate plant growth.nderstanding hormones is key to proper pruning. Auxin produced in the terminal buds suppresses growth of side buds and stimulates root growth. Gibberellins produced in the root growing tips stimulate shoot growth. Pruning a newly planted tree removes the auxin, slowing root regeneration. Figure 2.