Encyclopedia
Definitive guides for crops, pests, and agricultural diseases.
Tosya Rice
Tosya Rice is a renowned Turkish rice variety known for its aromatic flavor and excellent cooking quality. It flourishes in Mediterranean climates and is cultivated extensively in the Tosya region due to its adaptability to local conditions.
View Guide
Totapuri Mango
Totapuri Mango is a vigorous, widely cultivated mango variety valued for its distinctive parrot-beak tip, heavy bearing habit, and suitability for processing as well as fresh slicing. It performs best in warm tropical to subtropical climates with a pronounced dry period for flowering, deep well-drained soils, and disciplined canopy, irrigation, and nutrient management.
View Guide
Tragacanth Gum
Tragacanth Gum is a high-value perennial shrub grown primarily for the exudate gum harvested from its stems and roots. This definitive guide covers botanical requirements, planting, care, organic pest management, harvesting, and companion planting strategies for commercial and small-scale production.
View Guide
Tragopogon porrifolius
Tragopogon porrifolius, commonly known as salsify or oyster plant, is a cool-season biennial root vegetable prized for its long, slender taproots with a subtle oyster-like flavor. It offers reliable yields in temperate climates and is valued by home gardeners and small-scale farmers for its nutritional profile and ease of storage.
View Guide
Trichoderma
Trichoderma is a genus of fungi often celebrated as a biological control agent in agriculture, but certain species can become opportunistic pathogens causing green mold rot on crops, seeds, and seedlings under high-moisture conditions. This guide details its symptoms, lifecycle, management strategies, and prevention for affected crops. While primarily beneficial, unchecked Trichoderma outbreaks can lead to significant yield losses in humid environments.
View Profile
Trichoderma spp.
Trichoderma spp. are ubiquitous soil fungi renowned for their beneficial roles in agriculture, acting as biocontrol agents against plant pathogens like [Pythium](/wiki/pythium) and [Rhizoctonia](/wiki/rhizoctonia), while promoting plant growth through nutrient solubilization and root enhancement. However, under certain conditions, certain strains can cause green mold rot on crops, particularly in high-humidity environments or on stored produce. This guide provides comprehensive diagnostic, management, and prevention strategies for leveraging their benefits and mitigating rare pathogenic issues.
View Profile
Trichogramma
Trichogramma are tiny parasitic wasps widely used in biological control programs to target lepidopteran pests like moths and caterpillars. Contrary to common misconceptions, they are not agricultural pests but invaluable allies for organic farmers combating [caterpillars](/wiki/caterpillars) and other egg-laying insects. This guide provides diagnostic insights, lifecycle details, and management strategies to optimize their deployment in crop protection.
View Profile
trillium
Trillium is a genus of shade-loving perennial wildflowers prized for its distinctive three-petaled blooms and role in forest ecosystems. This guide delivers professional-grade cultivation advice for growers seeking to establish or expand trillium plantings sustainably.
View Guide
Trinidad Moruga Scorpion
The Trinidad Moruga Scorpion is one of the world's hottest peppers, renowned for its extreme heat and complex fruity flavor profile. This guide covers every stage of cultivation from soil preparation to harvest and post-harvest handling.
View Guide
Trinidad Scorpion Butch T
The Trinidad Scorpion Butch T is one of the world’s hottest chili peppers, known for its intense heat, distinctive scorpion tail, and rich, fruity flavor. This comprehensive growing guide covers everything from soil preparation and climate needs to organic pest control and post-harvest storage.
View Guide
Trinitario Cacao
Trinitario cacao is a prized hybrid cacao group derived primarily from Criollo and Forastero ancestry, valued for combining improved flavor complexity with better vigor and disease tolerance than pure Criollo types. It is best grown in humid tropical agroforestry systems with deep, well-drained, organically rich soils, steady warmth, and carefully managed shade, nutrition, and sanitation.
View Guide
Triple Crown Blackberry
Triple Crown Blackberry is a widely grown thornless semi-erect blackberry cultivar valued for large, glossy fruit, excellent sweetness, and an extended summer harvest. It is especially well suited to home orchards and market gardens in temperate regions where growers can provide trellising, consistent moisture, and disciplined cane management.
View Guide
Tristeza
Tristeza, caused by Citrus tristeza virus (CTV), is one of the most devastating viral diseases affecting citrus crops worldwide, leading to quick decline and death of trees on susceptible rootstocks. Transmitted primarily by aphids, it causes stem pitting, decline, and massive yield losses in oranges, grapefruits, and other citrus varieties. Effective management relies on resistant rootstocks, vector control, and certified planting material.
View Profile
Tristeza virus
Tristeza virus, caused by Citrus tristeza virus (CTV), is a devastating aphid-transmitted pathogen primarily affecting citrus crops worldwide, leading to tree decline, stem pitting, and massive yield losses. Known for quick-spreading epidemics that have wiped out millions of trees, it poses a severe threat to commercial orchards and small farms alike. Effective management relies on certified virus-free stock, vector control, and vigilant monitoring.
View Profile
Triticale
Triticale is a man-made cereal grain created by crossing wheat and rye, combining the grain quality and yield potential of wheat with the hardiness and stress tolerance of rye. It is widely grown for forage, silage, grazing, cover cropping, and grain in temperate farming systems, especially where marginal soils, drought, cold, or disease pressure limit wheat performance.
View Guide
Triticale (Presto)
Triticale (Presto) is a hybrid cereal crop developed by crossing wheat and rye. It combines the high yield potential of wheat with the disease resistance and environmental adaptability of rye, making it a versatile choice for farmers seeking robust yield and resilience.
View Guide
Triticale (Thatcher)
Triticale 'Thatcher' is a robust hybrid cereal grain combining traits from wheat and rye. It's cultivated for its adaptability to various soil types and climates, making it an efficient choice for sustainable agriculture.
View Guide
Tropical Apricot (Dovyalis abyssinica x hebecarpa)
The Tropical Apricot hybrid (Dovyalis abyssinica × hebecarpa) combines the hardiness of abyssinica with the superior fruit quality of hebecarpa, producing tangy, vitamin-rich fruits ideal for tropical and subtropical farms. This dioecious shrub thrives in warm climates, offering high yields with proper male-female planting ratios and pest management. Growers appreciate its drought tolerance and multipurpose uses from fresh eating to preserves.
View Guide
Tropical Race 4
Tropical Race 4 (TR4) is a devastating soil-borne fungal disease caused by Fusarium oxysporum f. sp. cubense, primarily targeting banana crops worldwide. It spreads through infected soil, water, and planting material, leading to rapid plant death and massive yield losses. Effective management relies on resistant varieties, strict biosecurity, and integrated cultural practices.
View Profile
Trunk diseases
Trunk diseases are a complex of fungal infections affecting woody perennial crops, causing cankers, dieback, and internal wood decay that lead to tree decline and death. Primarily spread through pruning wounds, they pose significant threats to orchards and vineyards worldwide. Effective management relies on prevention, cultural practices, and organic treatments to minimize losses.
View Profile
trunk gummosis
Trunk gummosis is a destructive fungal disease affecting the trunks and lower branches of fruit trees, characterized by oozing gum-like sap, bark cracking, and eventual tree decline. Commonly caused by Phytophthora species, it thrives in wet soils and wounds the tree's vascular system. Early detection and cultural management are key to saving affected trees and preventing spread.
View Profile
Tsuyahime Rice
Tsuyahime Rice, a premium short-grain rice from Japan, is renowned for its exceptional taste and purity. Grown in carefully managed conditions, it requires specific soil, water, and climate conditions for optimal yield.
View Guide
Tuber and root rots
Tuber and root rots are devastating soilborne diseases caused by fungi, oomycetes, and bacteria that infect underground plant parts, leading to decay, wilting, and plant death. They affect a wide range of crops, particularly those with tubers or enlarged roots, causing significant yield losses worldwide. Effective management relies on prevention, cultural practices, and prompt intervention using organic methods.
View Profile
Tuber moths
Tuber moths, also known as potato tuber moths, are destructive pests targeting underground tubers and foliage of solanaceous crops like potatoes. Their larvae tunnel into tubers and leaves, causing significant yield losses and storage damage. Effective management combines cultural practices, biological controls, and vigilant monitoring for sustainable agriculture.
View Profile