Encyclopedia
Definitive guides for crops, pests, and agricultural diseases.
Heliconia
Heliconia, commonly known as lobster claws or bird-of-paradise flowers, is a tropical plant often treated as an invasive pest in agricultural settings due to its aggressive growth and competition with crops. This guide provides comprehensive diagnostics, lifecycle details, organic management strategies, and prevention tips for farmers dealing with Heliconia infestations. Focus on tropical and subtropical regions where it outcompetes valuable crops like [banana](/wiki/banana) and [pineapple](/wiki/pineapple).
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Helicoverpa species
Helicoverpa species, commonly known as bollworms, corn earworms, or tomato fruitworms, are highly destructive moth larvae that bore into fruits, pods, and ears of numerous crops worldwide. These polyphagous pests cause significant yield losses in field crops through feeding damage and frass contamination. Effective integrated management combines monitoring, biological controls, and cultural practices for sustainable control.
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Helicoverpa spp.
Helicoverpa spp., commonly known as bollworms, corn earworms, or tomato fruitworms, are highly destructive lepidopteran pests targeting over 100 crops worldwide. Their larvae bore into fruits, pods, and ears, causing massive yield losses. This guide provides comprehensive diagnostics, organic management strategies, and prevention tactics for farmers.
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Helminthosporium-type diseases
Helminthosporium-type diseases, caused by fungi like Bipolaris and Exserohilum, produce characteristic leaf spots, blights, and seedling rots on cereals and grasses, leading to significant yield losses worldwide. These pathogens thrive in warm, humid conditions and spread via spores, making early detection and cultural management essential for effective control. Organic strategies focus on resistant varieties, sanitation, and balanced nutrition to minimize outbreaks.
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Hemp
Hemp is a fast-growing annual crop cultivated for fiber, grain, and multifunctional biomass, valued for its deep rooting, rapid canopy closure, and broad industrial use. Successful hemp production depends on precise matching of cultivar type, daylength, soil drainage, fertility, and harvest timing, because fiber, seed, and dual-purpose systems each require different management.
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hemp russet mite
The hemp russet mite (Aculops cannabicola) is a microscopic eriophyid mite that infests hemp and cannabis crops, causing russeting, bronzing, and stunted growth. Highly prolific in warm, dry conditions, it spreads rapidly via wind and tools, leading to significant yield losses if unmanaged. This guide provides expert diagnostics, organic management strategies, and prevention tactics for growers.
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Hemp Seed (CanMa)
Hemp Seed (CanMa) is an industrial hemp cultivar bred for high-quality seed production, delivering nutritious hemp hearts and versatile oil. This fast-growing annual thrives in temperate climates with well-drained soils and requires strict attention to photoperiod and harvest timing.
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Hemp Seed (CFX-2)
CFX-2 is a high-yielding, dual-purpose industrial hemp cultivar optimized for both grain and fiber production with excellent uniformity and disease resistance. This comprehensive guide covers soil preparation, planting, care schedules, pest management, harvesting, and storage for professional growers.
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Hemp Seed (Finola)
Finola is a short-season, dual-purpose industrial hemp variety bred in Finland for reliable seed production in cool temperate climates. It matures in 90–110 days and produces high-quality edible seeds with an excellent fatty acid profile. The crop also delivers useful fiber and supports sustainable rotations when managed with proper soil, pest, and harvest practices.
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hepatica
Hepatica is a low-growing, shade-loving perennial wildflower prized for its early spring blooms and distinctive three-lobed leaves. It thrives in rich, moist woodland soils and is valued by gardeners and small-scale growers for its ornamental beauty and ecological benefits.
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Heritage 6-4 Chili
Heritage 6-4 Chili peppers are known for their robust flavor and moderate heat level, making them a favorite among home gardeners and chefs alike. These chilies thrive in warm climates and well-drained soil, requiring careful attention to pests and diseases.
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Heritage Raspberry
Heritage Raspberry is a classic primocane-fruiting red raspberry cultivar valued for reliability, cold hardiness, and a long harvest window. It is especially popular with home growers and market gardeners because it bears heavily on first-year canes in late summer to fall, while also offering an optional lighter summer crop on overwintered canes in some management systems.
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Hessian fly
The Hessian fly is a devastating pest of wheat and other small grains, known for causing significant yield losses through larval feeding that stunts plant growth and promotes lodging. This guide provides comprehensive diagnostics, lifecycle insights, organic management strategies, and prevention tactics for farmers battling this tiny gall midge. Early detection and cultural controls are key to minimizing damage in affected crops like [wheat](/wiki/wheat) and [barley](/wiki/barley).
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Heuchera
Heuchera, commonly known as coral bells, is a versatile herbaceous perennial prized for its colorful foliage and delicate flower spikes. This guide delivers professional-grade growing advice covering soil, climate, propagation, maintenance, organic pest management, and companion planting strategies.
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Hibiscus
Hibiscus, commonly known as the tropical hibiscus or rose mallow, is a popular ornamental plant often plagued by pests that cause significant damage to leaves, flowers, and stems. This guide provides comprehensive diagnostics for identifying hibiscus infestations and proven organic management strategies to restore plant health. With proper prevention, growers can protect their hibiscus from common invaders like aphids and spider mites.
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Hibiscus (Roselle)
Hibiscus sabdariffa, commonly known as Roselle, is a fast-growing annual shrub cultivated primarily for its vibrant, edible calyces used in teas, beverages, and culinary dishes. This heat-loving crop thrives in tropical and subtropical climates, producing high-value harvests with relatively low input requirements when managed correctly.
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hickory
Hickory refers to the hickory shuckworm (Cydia caryana), a major lepidopteran pest of pecan and hickory trees that damages nut shucks and reduces kernel quality. This guide provides definitive identification, lifecycle details, and integrated management for commercial and home growers. Early detection and timely intervention are critical to protect yields.
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Hickory (Mockernut)
Mockernut hickory is a long-lived native North American hardwood valued for its high-quality nuts and durable timber. This comprehensive guide covers site selection, propagation, care, pest management, and harvesting practices for successful commercial or home production.
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Hickory (Pignut)
Pignut hickory is a long-lived native North American hardwood tree valued for its sweet, thin-shelled nuts and strong, shock-resistant wood. This definitive growing guide covers soil, climate, propagation, care, pest management, harvesting, and companion planting for commercial and home growers.
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Hickory (Shagbark)
Shagbark hickory is a long-lived native North American nut tree prized for its sweet, thin-shelled nuts and distinctive peeling bark. This definitive growing guide covers site selection, propagation, care schedules, organic pest control, and harvest techniques for reliable production.
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Hickory (Shellbark)
Shellbark hickory is a large, long-lived native North American nut tree prized for its thick-shelled, sweet kernels and exceptional wood quality. This comprehensive guide covers every stage of cultivation from site selection to post-harvest storage.
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hickory shuckworm
The hickory shuckworm (Cydia caryae) is a destructive moth pest targeting hickory nuts and pecans, boring into shucks and kernels causing premature nut drop and mold. This guide provides comprehensive diagnostics, lifecycle insights, organic management strategies, and prevention tips for growers. Effective control hinges on timely scouting and integrated organic practices to protect yields.
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High-Sugar Beet
High-Sugar Beet is a specialized sugar beet type bred for elevated sucrose accumulation, high root purity, and efficient processing or on-farm sweetener production. It performs best in deep, fertile, well-drained soils under cool-to-moderate growing conditions, where steady moisture and balanced nutrition allow roots to size up without sacrificing sugar concentration.
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Hillbilly Tomato
Hillbilly Tomato is a large, heirloom beefsteak variety prized for its striking bicolor flesh, sweet-tangy flavor, and reliable performance in home gardens and small farms. This indeterminate tomato produces high yields of 1–2 lb fruits with pink-red streaked interiors and is well suited to warm-season production. The guide below delivers professional-grade cultivation advice for soil preparation, planting, maintenance, pest management, and harvest.
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