gardener is spraying young green strawberry bushes by bordo mix - blue liquid made of copper sulphate

agriculture berry blue bordeaux bordo bud bush bushes copper downy farm farmer fruit fruitfarm fungi fungicide garden gardener germ green growing hand horticulture infections infestations irrigation leaves lime liquid made male man mildew mix mixture organic powdery prevent protection seedlings slaked splashing sprayed spraying springtime sprinkling strawberry sulfate sulphate vegetation young