Pine and fir trees, grown purposely for use as Christmas trees, are vulnerable to a wide variety of pests, weeds and diseases. Many of the conifer species...

A Christmas tree is a decorated tree, usually an evergreen conifer, such as a spruce, pine or fir, associated with the celebration of Christmas. It may...

Nonindigenous Plants Plant Pests in the United States (2002). Predicting Invasions of Nonindigenous Plants and Plant Pests. doi:10.17226/10259. ISBN 978-0-309-08264-8...

Christmas tree cultivation is an agricultural, forestry, and horticultural occupation which involves growing pine, spruce, and fir trees specifically for...

[citation needed] A number of marine pests have arrived in Australia in the ballast water of cargo ships. Marine pests include the black-striped mussel (Mytilopsis...

species as environmental weeds – species that infest, are controlled on, or are damaging to land under its control. The National Pest Plant Accord is periodically...

native to subtropical and tropical South America. Common names include Brazilian peppertree, aroeira, rose pepper, broadleaved pepper tree, wilelaiki (or wililaiki)...

scale insects, which are plant pests that feed on sap of trees and release honeydew, a sugary liquid. Ants eat honeydew, and in return protect the scale...

by grafting. A range of pests attack cacti in cultivation. Those that feed on sap include mealybugs, living on both stems and roots; scale insects, generally...

Jesus at the Christmas Eve service. As she walked to church, she noticed weeds growing alongside the road. She gathered a bouquet of weeds (some accounts...

destroyed by humans or invasive pests and weeds. There are great restoration projects underway around New Zealand and many organisations including community...

without the natural pests and diseases that control its vigour in its native continents; the photosynthesis or structural strength of a tree can be overwhelmed...

variety of names such as Christmas berry, Australian holly, coral ardisia, coral bush, coralberry, coralberry tree, hen's-eyes, and spiceberry. A. crenata...

myrosinase, and isothiocyanate. They are sometimes grown as companion plants and suffer from few pests and diseases. They germinate quickly and grow rapidly...

N. V. "Crops: European Black Currant". Economic plants and their diseases, pests and weeds. AgroAtlas. Retrieved 2013-06-02. Gilbert, E. G. (1970)....

shortage. During this time, weeds, tree roots, tubers, etc., became important sources of famine food, which included C. indica and let to its use as a food...

problems and were costly and labour-intensive. Once planted out, drought, sand storms, pests, competition from weeds and destruction by people and animals...

stone-free soil. The plant is attacked by the carrot fly and other insect pests, as well as viruses and fungal diseases, of which canker is the most serious...

blooms just before Christmas. The leaves are basal, curved, and linear, growing up to 60 cm (24 in) long. They are rather leathery and arranged in two opposite...

fruit and grapes. It is thought to spread weeds, such as blackberry, and may compete with native birds for food and nesting sites. The introduced common blackbird...

p. 342. Barney, J. N.; DiTommaso, A. (2002). "The biology of Canadian weeds. 118. Artemisia vulgaris L.". Canadian Journal of Plant Science. 83 (1):...

first clear the field of weeds, rocks, boulders, branches, and stumps. Then with a clear field, they must take their hoe and till the soil. Next, they...

effective counter against introduced weeds. Camels can do significant damage to infrastructure such as taps, pumps, and toilets, as a means to obtain water...

signal of defensive commitment towards insect pests that migrate to the trees in autumn. Defensive structures and chemicals are costly as they require resources...

Genetic diversity in forests also contributes to tree vitality and to the resilience towards pests and diseases. Furthermore, FGR has a crucial role in...

humans Animals in film and television Animals in sport – Sports that involve use of animals Biological pest control – Controlling pests using other organisms...

Diseases and pests of ornamental plants (5th ed.). New York: Wiley. ISBN 978-0471072492. Retrieved 2014-12-04. Gratwick, Marion, ed. (1992). Crop Pests in the...

Growing Methods The Salad Garden Organic Control of Household Pests Organic Control of Common Weeds The Earth Gardeners Companion: A Month-by-Month Guide The...

into four species types; weeds (trees, shrubs, agricultural weeds), grassland species (grasses), garden escapes (vegetables), and other ruderal species....

hunting and persecution as agricultural pests. The birds have also suffered from the introduction of mammals such as rats, cats, foxes, pigs and goats,...