It depends on the pest involved. The one's that cause the most serious damage are gophers which will eat the roots out from under it or snails/slugs which can cause major leaf damage. There are beneficial critters out the too. See here for more-
http://www.docstoc.com/docs/17124222/GARDEN-PESTS
One chemical component in radish that can kill pests is glucosinolates. When radish tissues are damaged, glucosinolates are released and converted into isothiocyanates, which have toxic effects on pests. These compounds act as natural insecticides that can deter or kill pests that may attack radish plants.
Plants do have defense mechanism to protect them from insect pests and diseases.
Generally insect pests attack the plants in three ways: (1) They cut the root, stem and leaf, (2) they suck the cell sap from various parts of the plant and (3) they bore into stem and fruits. They thus affect the health of the crop and reduce yields
George Victor Johnson has written: 'Insects and related pests of house plants' -- subject(s): Control, Diseases and pests, House plants, Pests
Scale pests can negatively impact plants by feeding on their sap, which weakens the plant and reduces its ability to grow and thrive. Additionally, scale pests can transmit diseases to plants, further compromising their health.
Plants produce sugar in the sap, nectar and fruits that attract insects, birds, etc. needed to pollinate and protect the plants. We are the ones who consider the pollinators pests.
Insect Pests are serious pests of plants which attack them in all stages and parts. based on the mode of attack, the insect pests can be classified into three types.Chewing Insects,Sucking Insects,Borer Insects.Chewing Insects:They cut and chew the root, stem and leaves of the plants.Eg. Grasshoppers, Caterpillars, etc.Sucking Insects:They suck the cell sap from the different parts of the plants.Eg. Leaf hoppers, Aphids, etc.Borer Insects:They bore and enter different parts and feed on the plants.Eg. Sugarcane borer, etc.
Marigold flowers do not have any pests. They are actually planted with other plants to keep pests away. ( and yes, this is correct )
Yes, plants can kill plants in one day.
Yes, slugs are considered pests that can cause damage to plants in the garden by feeding on leaves, stems, and fruits.
To protect strawberries from pests effectively, you can use natural predators like ladybugs, cover the plants with row covers, apply organic pesticides, and regularly inspect the plants for signs of pests.
yes they eat plants.