Encyclopedia
Definitive guides for crops, pests, and agricultural diseases.
Longan Psyllid
The longan psyllid (Blastopsylla longanae) is a sap-sucking pest that severely impacts longan trees by causing leaf curl, honeydew production, and sooty mold. Native to Southeast Asia, it spreads rapidly in humid tropical climates, leading to defoliation and reduced fruit yields. Effective management combines organic controls like neem oil and biological agents with cultural practices for long-term prevention.
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longleaf pine
Longleaf pine is a long-lived, fire-adapted conifer native to the southeastern United States, prized for its high-quality timber, resin, and ecological role in open savanna ecosystems. It requires well-drained, acidic soils and periodic fire to maintain dominance. This guide delivers professional-grade cultivation advice for foresters, land managers, and restoration practitioners.
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loopers
Loopers are inchworm-like caterpillars notorious for defoliating vegetables and field crops by chewing large holes in leaves. Belonging to the inchworm family, they 'loop' when moving due to lacking prolegs. Effective management combines monitoring, organic controls like BT, and cultural practices for sustainable control.
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Loose Smut
Loose smut is a fungal disease primarily affecting cereal crops like wheat, barley, and oats, where the pathogen infects seeds or seedlings and replaces the grain head with a mass of black teliospores. It spreads via contaminated seed and thrives in cool, moist conditions during early plant growth. Effective management relies on certified disease-free seeds and resistant varieties, preventing up to 100% yield loss in severe cases.
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lotus
Lotus is a perennial aquatic crop grown for its edible rhizomes, seeds, and ornamental flowers. It thrives in shallow, nutrient-rich water bodies and requires specific warm-season conditions for optimal growth and harvest.
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Lotus Root (Nelumbo nucifera)
Nelumbo nucifera, commonly known as lotus root, is an aquatic perennial grown for its crisp, nutritious rhizomes that thrive in flooded conditions. This guide delivers professional-grade, practical advice on soil, climate, planting, care, pests, harvesting, and companion planting for commercial or home-scale production.
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Lotus Seed (Red)
Lotus Seed (Red) is a premium aquatic crop valued for its large, nutrient-dense red seeds, striking pink-to-red blooms, and edible rhizomes. This guide covers every stage of commercial and home-scale production from site selection through post-harvest storage.
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Lotus Seed (White)
Lotus Seed (White) is a high-value aquatic crop grown for its nutritious, crisp seeds harvested from the iconic lotus plant. This guide covers complete cultivation from propagation through harvest and storage with professional-grade practices for optimal yields.
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Lovage Root
Lovage root is a hardy, long-lived perennial herb valued for its celery-like flavor and medicinal properties. It thrives in temperate climates and provides multiple harvests from roots, leaves, and seeds over many years.
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Lovi-Lovi (Flacourtia inermis)
Lovi-Lovi, scientifically known as Flacourtia inermis, is a tropical shrub or small tree prized for its sweet-tart, red berries rich in vitamin C and antioxidants. Native to Southeast Asia and widely cultivated in the Philippines, India, and Pacific islands, it thrives in humid, subtropical climates and offers versatile uses in fresh eating, jams, wines, and traditional medicine. This resilient crop is ideal for home gardens and small farms seeking low-maintenance fruit production with ornamental appeal.
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Lucky Tiger Tomato
Lucky Tiger Tomato is a vigorous, indeterminate cherry-type cultivar prized for its striking striped fruit and exceptional flavor. It thrives in full sun with fertile, well-drained soil and produces abundant harvests from mid-summer through frost when properly supported and managed.
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lupins
Lupins (Lupinus spp.) are invasive legume plants that aggressively outcompete crops in agricultural fields, particularly in temperate regions. This guide provides definitive diagnostic criteria, lifecycle details, and organic management strategies to control lupin infestations effectively. Farmers can implement prevention tactics to safeguard yields from this persistent weed pest.
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Lychee
Lychee refers to the subtropical fruit crop Litchi chinensis rather than a pest; this guide covers diagnostic signs of common lychee disorders and integrated management for sustainable production.
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Lychee (Brewster)
The Brewster lychee is a premium subtropical fruit variety renowned for its large, sweet, juicy fruits with a crisp texture and floral aroma. This comprehensive guide covers everything from propagation to harvest, tailored for optimal yields in suitable climates. Ideal for home orchards and commercial growers seeking high-quality lychee production.
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Lychee (Emperor)
The Emperor lychee is a premium cultivar renowned for its large, sweet, juicy fruits with a crisp texture and exceptional flavor profile. This subtropical evergreen tree thrives in warm climates, producing heavy yields of premium lychees ideal for fresh markets and home orchards. Growers appreciate its vigor, disease resistance, and ability to bear fruit reliably once established.
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Lychee (Hak Ip)
Hak Ip lychee is a premium Chinese cultivar renowned for its large, sweet, crisp fruits with a distinctive floral aroma. This subtropical evergreen tree thrives in warm, humid climates and requires careful management for optimal yields. Growers prize it for its high market value and resistance to some common lychee pests.
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Lychee (Mauritius)
Lychee (Mauritius) is a premium cultivar renowned for its large, juicy, rose-scented fruits with crisp, translucent flesh and a perfect sweet-tart balance. This evergreen subtropical tree thrives in tropical and warm temperate climates, producing heavy yields after 3-5 years when properly managed. Ideal for home orchards and commercial plantations, it demands excellent drainage, humidity, and protection from frost.
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Lychee (No Mai Tsze)
No Mai Tsze lychee is a premium cultivar renowned for its large, sweet, crunchy fruits with a distinctive floral aroma, originating from China. This subtropical evergreen tree thrives in warm, humid climates and requires careful management for optimal yields. Growers prize it for its high market value and resistance to some common lychee pests.
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Lychee Erinose Mite
The lychee erinose mite (Aceria litchii) is a microscopic pest that causes severe deformation and defoliation on lychee trees, primarily through its feeding that induces abnormal hairy growths known as erinose. Native to Southeast Asia, it has spread globally to lychee-growing regions, posing a significant threat to fruit production. Effective management relies on early detection, cultural practices, and targeted organic treatments.
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lygus bugs
Lygus bugs are highly destructive plant-feeding insects that target over 300 crop species, causing significant economic damage through direct feeding and transmission of plant pathogens. These small, green-to-brown mirids pierce plant tissues, leading to deformed buds, blasted blossoms, and cat-facing on fruits. Effective management combines monitoring, cultural practices, and targeted organic controls for sustainable agriculture.
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M-202 Rice
M-202 Rice is a medium-grain rice variety, known for its adaptability and high yield potential. It is primarily grown in the Sacramento Valley of California and is favored for its quality and disease resistance.
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Maca
Maca is a high-altitude Andean root crop prized for its nutritional density and adaptogenic properties. This guide delivers professional, field-tested advice for growing maca successfully from seed to storage.
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Maca (Lepidium meyenii - Black)
Black Maca (Lepidium meyenii) is a high-altitude Andean root crop prized for its dense nutrient profile and resilience in extreme conditions. This comprehensive guide details professional agronomic practices for soil preparation, planting, care, pest management, and harvest of the black ecotype.
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Maca (Lepidium meyenii - Red)
Red maca (Lepidium meyenii) is a resilient high-altitude root crop native to the Peruvian Andes, prized for its nutrient-dense hypocotyls and adaptogenic properties. This comprehensive guide covers optimal growing conditions, propagation, care, organic pest management, harvesting, and companion planting for professional-scale production.
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