B

Biennial Plants Definition:A biennial is a plant that completes its life cycle over two years. In the first year, it grows vegetatively, producing leaves, roots, and stems,...

Big Bud – A Plant Disorder Overview Big Bud is a physiological and pest-related disorder affecting various plants, particularly blackcurrants (Ribes nigrum), tomatoes (Solanum lycopersicum), and...

Bipinnate – A Botanical Term Definition Bipinnate describes a type of compound leaf structure in which the primary leaflets are further divided into secondary leaflets, giving...

Bitter Pit Overview:Bitter pit is a physiological disorder affecting apples (Malus domestica), primarily caused by calcium deficiency in the fruit. It manifests as small, dark,...

Blackfly (Aphididae: Aphis fabae Scopoli, 1763) Classification: Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Hemiptera Family: Aphididae Genus: Aphis Species: Aphis fabae Description: The blackfly, Aphis fabae, is a small, sap-sucking insect belonging to the aphid family. It is typically 1.5–3 mm...

Blackleg (Plant Disease: Caused by Phoma lingam and Pectobacterium atrosepticum) Classification: Kingdom: Fungi / Bacteria Phylum: Ascomycota (Phoma lingam) / Proteobacteria (Pectobacterium atrosepticum) Class: Dothideomycetes (Phoma lingam) / Gammaproteobacteria (Pectobacterium atrosepticum) Order: Pleosporales (Phoma lingam) /...

Black Spot (Plant Disease: Caused by Diplocarpon rosae) Classification: Kingdom: Fungi Phylum: Ascomycota Class: Leotiomycetes Order: Helotiales Family: Dermateaceae Genus: Diplocarpon Species: Diplocarpon rosae Description: Black spot is a fungal disease that primarily affects roses (Rosa spp.), though it can also impact other...

Bleeding (Botanical Term) Definition:In botany, bleeding refers to the exudation of sap or other plant fluids from a wound or incision in a plant’s vascular system, particularly...

(noun; pathology, botany) Definition:In botany, blight refers to a rapid and extensive discoloration, wilting, or death of plant tissues—typically leaves, stems, or flowers—caused by various pathogens, most...

Blind (adjective, noun; horticulture, botany) Definition (Botany & Horticulture): In a botanical or horticultural context, blind refers to a plant shoot, bud, or flowering stem that fails to develop...