1 FAQ
Pests, Diseases & DisordersDoes a negative mango disease sample mean the whole tree is disease-free?
Interpret a negative result within the limits of the submitted material and the examination performed. A single dry twig may not represent an advancing problem elsewhere in the canopy. Ask the laboratory what the result excludes and whether fresh tissue from a different stage is needed. Continue recording symptoms while resolving that question. Do not turn a limited negative finding into a declaration about every branch, root, or fruit on the tree.