What plant diseases are caused by insects?
Numerous plant diseases could be listed among those in which bacteria are spread by insects passively as described above, for example, the bacterial bean blights, fire blight of apple and pear, citrus canker, cotton boll rot, crown gal, bacterial spot and canker of stone fruits, etc. Plant diseases are broadly classified as Biotic or Abiotic. Biotic diseases are those caused by living organisms, like fungi, bacteria, and even viruses. Biotic diseases usually appear on random plants throughout a field and effect different plants with different levels of severity.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.Germs that cause infectious diseases include viruses, bacteria, fungi, parasites and, rarely, prions. We all get infectious diseases.Pathogen:- Any agent which can cause disease in plants or in animals is known as a pathogen, such as bacteria, viruses, fungus, protozoa, parasites, etc.There are many insects that are the primary or intermediate hosts or carriers of human diseases. Pathogens that are capable of being transmitted by insects include protozoa, bacteria, viruses, and such helminths as tapeworms, flukes, and roundworms.
What are harmful organisms?
In subject area: Pharmacology, Toxicology and Pharmaceutical Science. Harmful organisms are defined as invertebrates (such as fleas) and vertebrates (such as birds) that can be controlled through products designed to repel or attract them, impacting human or veterinary hygiene either directly or indirectly. Harmful microorganisms, also known as pathogens or disease-causing agents, are organisms that have the potential to cause infection or disease. These microorganisms include bacteria, viruses, fungi, protozoa, and parasites.
Which is harmful for crops?
Insects and Pests Since the domestication of agricultural crops or the dawn of the agricultural revolution, insects and pests are the main villains of the crop. They have been competing with humans over farm produce. They damage crops in two ways: Direct injury and indirect damage. Insect damage ranges from reduced plant vigor to plant death and heavy crop losses occur. Insects injury plants by chewing foliages, sucking juices, laying eggs and transmitting diseases.Common pests like aphids, thrips, caterpillars, spider mites, and whitefly can lead to damaged plants and reduced yields. Our commitment is to provide growers around the world with extensive knowledge and natural solutions to manage and prevent pests.Insects damage plants either by sucking, rasping, chewing, leafmining, or boring. Obviously those which are leafminers or borers chew but are usually treated differently so we will consider them as producing distinct types of injury to plants.Major insects/pests infesting vegetables are Aphids, caterpillars, cutworms, grasshoppers and locusts, thrips, whiteflies, mites, etc. To attain relief from these insects/pests various IPM practices have been put forth.
What harms plants and animals?
Pollution: Air, water, and soil pollution harm both plants and animals. For more, see Environmental Issues. Climate Change: Alters weather patterns and harms sensitive species (see effects of climate change). Soil Degradation: Intensive agriculture and chemical use decrease soil fertility. Climate Change: Excessive greenhouse gas emissions lead to global warming. Loss of Biodiversity: Hunting, habitat destruction, and pollution threaten wildlife and plant species.