As an AI language model, I do not have personal experience or knowledge on TSO Dose for Apple Plants. However, I can provide some general information on the topic, which can be used as a basis for further research or consultation with experts.
TSO, or Trichoderma harzianum strain T-22, is a beneficial fungus that is widely used in agriculture as a biocontrol agent against soil-borne plant pathogens. In particular, TSO has been shown to be effective in suppressing the growth of various fungal diseases that affect apple trees, such as root rot, collar rot, and crown rot.
When it comes to the application of TSO to apple plants, the dose and timing of treatment can vary depending on several factors, such as the severity of the disease, the stage of growth of the plants, and the environmental conditions. In general, it is recommended to use TSO at a rate of 1-2 kg per hectare, either by seed coating, soil drenching, or foliar spray.
One study conducted in Italy showed that applying TSO to apple orchards at a rate of 2 kg/ha twice a year (in spring and autumn) significantly reduced the incidence of root rot and improved the growth and yield of the trees. Another study from India found that a single application of TSO at a rate of 2 kg/ha through soil drenching improved the root and shoot growth and reduced the incidence of collar rot in apple plants.
However, it is important to note that the effectiveness of TSO as a biocontrol agent can vary depending on several factors, such as the strain of Trichoderma used, the method of application, and the overall management practices of the orchard. Therefore, it is advisable to consult with a qualified agronomist or extension agent before using TSO or any other biocontrol agent in apple orchards.