What are the 4 types of pests?
A pest is classed as an animal which could be harmful to humans. They may for example damage crops, livestock or forestry, cause a nuisance by invading homes and work spaces or cause illness by spreading disease. There are four different types of pests – rodents, insects, birds and wildlife. pesticides include all materials that are used to prevent, destroy, repel, attract or reduce pest organisms. Insecticides, herbicides, fungicides and rodenticides are some of the more well-known pesticides. Others include growth regulators, plant defoliants, surface disinfectants and some swimming pool chemicals.Insecticides are commonly used in agricultural, public health and industrial applications, as well as household and commercial uses (e. The most commonly used insecticides are the organophosphates, pyrethroids and carbamates (see Figure 1).Insecticides are types of pesticides formulated to kill certain insects such as aphids, beetles, spider mites, caterpillars, loopers, thrips, grasshoppers, and so on. The best insecticide for vegetable gardens are neem oil, pyrethrin-based sprays, and insecticidal soap.Common types of plant pests They include aphids, thrips, whitefly, leaf miners, caterpillars, beetles, and many others. These insects often feed on plant tissues, causing damage to leaves, flowers and fruits. They can also transmit diseases to plants.Insecticides are a type of pesticide that is used to specifically target and kill insects. Some insecticides include snail bait, ant killer, and wasp killer. Herbicides are used to kill undesirable plants or “weeds”. Some herbicides will kill all the plants they touch, while others are designed to target one species.
What are the three great pests?
Three of those “pests” made relative sense: Flies, mosquitoes and rats can carry disease, and humans still try to control them today. But why were sparrows lumped in with the other three? Mao, it turns out, wanted to prevent the abundant birds from eating grain seeds — a perceived threat to farm production. In 1958, China included the sparrow in its “Four Pests Campaign,” which aimed to improve agricultural activity and human health by eradicating flies, mosquitoes, rats and sparrows.The Four Pests campaign (Chinese: 除四害; pinyin: Chú Sì Hài) was one of the first campaigns of the Great Leap Forward in Maoist China from 1958 to 1962. Authorities targeted four pests for elimination: rats, flies, mosquitoes, and sparrows.
What are the three main pests?
Rodents – rats and mice ● Insects – cockroaches, beetles, flies etc ● Birds – pigeons, seagulls etc.These include Spiders, Box Elders, Camel/Cave Crickets, Stink Bugs, Beetles, Moths, House Crickets, Stored Product Pests, Silverfish, Millipedes, Centipedes, Wasps and Hornets.The house fly is found all over the world where humans live and so is the most widely distributed insect.
What are the 5 plant diseases?
What are the common plant diseases? Common plant diseases include fungal diseases, bacterial diseases, and viral diseases. Fungal Diseases: Black spot, Rust, Botrytis blight, Powdery mildew. Bacterial Diseases: Black rot, Bacterial canker, Soft rot, Leaf spot wilt, Blight.Phytophthora infestans is an oomycete or water mold, a fungus-like microorganism that causes the serious potato and tomato disease known as late blight or potato blight. Early blight, caused by Alternaria solani, is also often called potato blight.
How can I identify plant diseases?
There are a variety of symptoms of plant disease such as spots, dead or dying tissue, fuzzy spores, bumps, bulges, and irregular coloration on the fruits. The disease triangle consists of a susceptible plant, a pathogen, and favorable environmental conditions that allow the pathogen to infect the plant. Symptoms: Diseases make plants do “funny” things: wilt even if they are well watered, develop sooty black spots or a white fungus, or grow distorted leaves. Plant diseases tend to affect the whole plant, while insect pests attack individual fruit or leaves.Plant disease is defined as the state of local or systemic abnormal physiological functioning of a plant, resulting from the continuous, prolonged ‘irritation’ caused by phytopathogenic organisms (infectious or biotic disease agents).