Calcium chelate is as effective as phosphite in controlling Phytophthora root rot in glasshouse trials

Abstract

Phytophthora is a genus of plant-damaging oomycetes, which cause significant economic losses and environmental damage. Worldwide, Phytophthora cinnamomi is one of the most invasive plant pathogens, causing severe disease and mortality to ornamental and native plants in agriculture, horticulture and forestry (Burgess et al., 2021).Of the management options used to reduce the impact and severity of diseases, cultural and chemical control are the most successful.Cultural control includes managing drainage, sanitation and clean plant stock (Strömberg & Brishammar, 1991). Chemical control is most commonly used due to its rapid action, high efficiency and cost-effectiveness (Gisi, 2002). Formulations containing phosphite are very effective systemic fungicides used to control many

Potassium Phosphonate Induces Resistance in Sweet Chestnut against Ink Disease Caused by Phytophthora Species

“…Silicate-based mulch could be a valuable alternative to phosphonates, especially where there might be evidence of resistant isolates [ 61 , 62 ]. Recently, Ca chelate is another potential product that can be utilized to stimulate plant defense responses against plant pathogens, particularly P. cinnamomi [ 63 ]. Green pesticides like those based on cinnamate anion and bioactive metabolites produced by fungi have shown a strong inhibition rate comparable to some fungicides against Phytophthora spp., including P. cinnamomi and P .…”