Encyclopedia

Definitive guides for crops, pests, and agricultural diseases.

Indian meal moth
Pest
Indian meal moth
Moderate

The Indian meal moth is a widespread stored-product pest that infests grains, nuts, dried fruits, and processed foods. Larvae cause direct feeding damage and contaminate commodities with silk webbing and frass. Effective management relies on sanitation, monitoring, and targeted treatments.

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indiangrass
Crop
indiangrass
Moderate

Indiangrass is a tall, warm-season native perennial bunchgrass prized for forage, biomass, wildlife habitat, and erosion control. It thrives across the central and eastern United States with deep roots, high drought tolerance, and late-season seed production that supports pollinators and birds.

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Indigo Root
Crop
Indigo Root
Moderate

Indigo Root is a fast-growing leguminous shrub cultivated primarily for its leaves, which yield the historic blue dye indigo. This guide covers soil, climate, planting, care, pests, harvest, and companion strategies for commercial and small-farm production.

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Indigo Rose Tomato
Crop
Indigo Rose Tomato
Moderate

Indigo Rose Tomato is a striking purple-skinned cherry tomato cultivar prized for its high anthocyanin content and rich flavor. Developed for both ornamental appeal and antioxidant benefits, it thrives in full sun with consistent moisture and well-drained soil. This guide covers every stage of successful cultivation from seed to storage.

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Industrial Hemp
Crop
Industrial Hemp
Moderate

Industrial hemp is a fast-growing annual fiber, grain, and multipurpose field crop selected for low THC content and strong agronomic performance. When matched to the right cultivar, soil structure, and planting density, it can produce excellent bast fiber, hurd, or seed yields while also improving crop rotation diversity.

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Inga edulis
Crop
Inga edulis
Moderate

Inga edulis, commonly known as ice-cream bean or guama, is a fast-growing tropical legume tree prized for its sweet, edible pulp and exceptional nitrogen-fixing capabilities. This guide delivers professional-grade cultivation practices for home gardeners and commercial growers seeking sustainable yields in suitable climates.

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Ink disease
Disease
Ink disease
Challenging

Ink disease is a devastating soil-borne fungal-like pathogen primarily affecting chestnut trees and certain fruit crops, causing dark ink-like lesions on roots and stems. It thrives in poorly drained, wet soils and leads to rapid tree decline through root rot and girdling. Early detection and improved drainage are key to management in affected orchards.

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Internal Breakdown
Issue
Internal Breakdown
Moderate

Internal Breakdown is a physiological disorder affecting fruit quality in various crops, characterized by internal tissue necrosis and mealy textures that render produce unmarketable. It arises from environmental imbalances rather than pathogens, making early detection and cultural management essential. This guide provides comprehensive diagnostics, organic treatments, and prevention strategies for affected growers.

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Internode Borer
Pest
Internode Borer
Challenging

The internode borer is a destructive stem-boring pest primarily targeting sugarcane, rice, and other graminaceous crops, causing significant yield losses through tunneling that weakens stalks and promotes rot. Early detection of characteristic 'dead hearts' and frass is crucial for effective management. This guide provides comprehensive diagnostics, organic control strategies, and prevention tactics for farmers.

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Ips engraver beetles
Pest
Ips engraver beetles
Challenging

Ips engraver beetles are aggressive bark beetles that attack stressed or recently damaged conifers, creating characteristic galleries under the bark that disrupt nutrient flow and rapidly kill trees. These native pests can trigger localized outbreaks after storms, drought, or thinning operations when populations build in slash and move to healthy hosts.

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IR64 Rice
Crop
IR64 Rice
Moderate

IR64 Rice is a high-yielding, semi-dwarf rice variety developed for its resilience and adaptability in diverse growing conditions. Known for its delicious taste and short growth duration, it is a popular choice among farmers.

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Iris
Crop
Iris
Moderate

Iris is a diverse genus of perennial flowering plants prized for its striking blooms and adaptability in ornamental and cut-flower production. The guide covers botanical traits, ideal soil and climate conditions, planting methods, seasonal care, organic pest and disease control, harvesting, and companion planting strategies for commercial and home growers.

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Iris borer
Pest
Iris borer
Moderate

The iris borer is a destructive moth larva that tunnels into iris rhizomes, causing wilting, rot, and plant death. Early detection and integrated management are essential for protecting iris plantings in home and commercial gardens.

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iron deficiency
Issue
iron deficiency
Moderate

Iron deficiency is a widespread nutrient disorder in plants causing interveinal chlorosis, particularly in young leaves, due to insufficient iron availability for chlorophyll production. Commonly triggered by high soil pH and calcareous soils, it severely impacts crop yields and quality in alkaline environments. Effective management involves soil acidification, chelated fertilizers, and cultivar selection for optimal plant health.

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Irwin Mango
Crop
Irwin Mango
Moderate

Irwin Mango is a premium dessert mango cultivar valued for its attractive red blush, fiber-light flesh, consistent quality, and manageable tree structure compared with many vigorous mango types. It performs best in frost-free subtropical to tropical climates with excellent drainage, careful irrigation management, and disciplined canopy training to balance vegetative growth with reliable flowering and fruit set.

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Isis Candy Tomato
Crop
Isis Candy Tomato
Moderate

Isis Candy Tomato is a rare, high-sugar cherry-type heirloom prized for its intense sweetness, complex flavor, and striking appearance. This vigorous indeterminate variety produces abundant clusters of small, candy-striped fruits ideal for fresh eating and specialty markets.

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Ivory Teff
Crop
Ivory Teff
Moderate

Ivory Teff is a light-seeded form of teff valued for its fine grain, fast maturity, drought tolerance, and adaptability to marginal soils when drainage is good. It is a warm-season annual cereal traditionally associated with the Horn of Africa, where it has long been prized for both grain and forage, especially for producing high-quality flour and soft, pale injera.

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Ivy Gourd (Kundru)
Crop
Ivy Gourd (Kundru)
Moderate

Ivy Gourd, also known as Kundru or Coccinia grandis, is a fast-growing tropical vine native to parts of Africa and Asia. It is cherished for its edible green fruits, which are often used in Indian and Southeast Asian cuisines.

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Jaboticaba
Crop
Jaboticaba
Moderate

Jaboticaba, scientifically known as Plinia cauliflora, is a unique tropical fruit tree notorious for bearing fruit directly on its trunk and branches, making it a prized ornamental and edible crop in subtropical agriculture. While not a pest itself, severe infestations of pests like [scale insects](/wiki/scale-insects) and fungal diseases such as [anthracnose](/wiki/anthracnose) can ravage jaboticaba trees, leading to significant yield losses. This guide provides definitive diagnostic and management strategies for healthy jaboticaba cultivation.

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Jaboticaba (Grimal)
Crop
Jaboticaba (Grimal)
Moderate

Jaboticaba (Grimal) is a rare, cold-hardy Brazilian fruit tree renowned for its unique cauliflory—grape-like fruits growing directly on the trunk and branches. This compact cultivar thrives in subtropical to temperate climates, producing abundant, sweet-tart berries ideal for fresh eating, jams, and wines. Perfect for small farms and home orchards, it offers year-round harvests with minimal space requirements.

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Jaboticaba (Red Hybrid)
Crop
Jaboticaba (Red Hybrid)
Moderate

Jaboticaba (Red Hybrid) is a striking Brazilian fruit tree renowned for its unique cauliflorous fruiting habit, where dark red-purple grapes grow directly on the trunk and branches. This hybrid cultivar offers superior flavor, larger fruit size, and enhanced cold tolerance compared to traditional varieties, making it ideal for subtropical home orchards and small farms. With proper care, it yields abundant crops multiple times per year, providing fresh, antioxidant-rich berries for eating, juicing, or winemaking.

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Jaboticaba (Sabara)
Crop
Jaboticaba (Sabara)
Moderate

Jaboticaba (Sabara) is a rare Brazilian fruit tree famed for its unique cauliflory, producing clusters of grape-like fruits directly on the trunk and branches. This comprehensive guide covers cultivation from propagation to harvest, ideal for subtropical growers seeking exotic, high-value crops. Discover optimal soil, pest management, and companion planting for bountiful yields.

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Jack-in-the-Pulpit
Crop
Jack-in-the-Pulpit
Moderate

Jack-in-the-Pulpit is a native woodland perennial prized for its unique hooded inflorescence and shade tolerance. This definitive growing guide covers soil preparation, propagation, seasonal care, and organic pest management for successful cultivation in temperate gardens.

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Jack-o'-Lantern Pumpkin
Crop
Jack-o'-Lantern Pumpkin
Moderate

Jack-o'-lantern pumpkins are classic carving pumpkins prized for their round-to-oblong shape, sturdy handles, bright orange rind, and reliable autumn maturity. Although often grown for decoration, they are still a true fruiting cucurbit that demands warm soil, steady fertility, consistent pollination, and disciplined disease management to produce uniform, marketable fruits.

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