18 August 2026

Advice on using Sb Invigorator and Phytoseiulus to control RSM

Q. “Question – how long after spraying with Sb Invigorator should I wait before applying Phytoseiulus?” Roger by email

A. Thanks for the message and the beauty of this spray is being chemical free you can release the predators i.e. the phytoseiulus as soon as it has dried. There are no chemical residues left behind so unlike chemical sprays you do not have to wait a period of time for the effects to disappear. Go ahead and release the phyto as soon as the spray has dried. Kind regards Jon @ Green Gardener

Use SB Invigorator to save your plants from insect pests i.e. aphids, mealy bug, woolly aphids, scale etc and reduce fungal diseases BOTH underglass and outdoors. This natural spray controls a range of pests in a safe and effective way PLUS it also controls fungal diseases. SB Invigorator should be in your store cupboard ready to :-

Control pests BEFORE introducing natural controls – Use it to stop pests getting out of control and as there are no harmful chemical residues left behind, beneficial insects can then be introduced i.e. spotted Whitefly? Spray with SB Invigorator and then introduce Encarsia.
Control any pest hotspots ONCE natural controls have been introduced – Use it to target any pest hotspots as it will not harm beneficial insects once they have been introduced.
Use for a pest emergency – been away or not noticed a rapid build up of pests such as red spider mite or greenfly? – use it to get control BEFORE introducing beneficial insects.
Use it to control powdery mildew on cucumbers – some sprays are NOT suitable for controlling powdery mildew on cucumbers, but SB Invigorator is safe to use. Simply spray weekly to keep it under control.
Control pests during the autumn and winter when it is too cold to use beneficial insects i.e. in unheated greenhouses / conservatories – There are no harmful chemical residues left behind, so beneficial insects can be introduced AS SOON as the temperatures are warm enough in the spring.

Use SB Invigorator to control insect pests such as aphids, mealy bug, woolly aphids, scale and when used regularly it will reduce fungal diseases such as mildew. SB Plant Invigorator is not only highly effective, but it is also biodegradable and non toxic. SB Plant Invigorator can be used in the garden, conservatory or in the greenhouse and most importantly can be used on edible plants – pick and eat straightway. SB Invigorator is brilliant at clearing heavy infestations BEFORE introducing a natural control. Here the spray has been applied twice at 2 day intervals to kill a heavy infestation of mealy bug before introducing cryptolaemus. The first spray removes the protective wax from the pest, which normally makes it so difficult to control and then the subsequent spray 2 days later kills the pest. As no harmful chemical residues are left behind, the cryptolaemus were immediately introduced to give on-going pest control.

SB Invigorator is available as a 500ml ready to use spray, as a 250ml concentrate (makes 25 litres of spray), or as a 500ml concentrate(makes 50 litres of spray) for use in your own sprayer.