Tools Against Pests: Physical Control
When it comes to eliminating the different pests that may appear in our crop, whether in an orchard or garden, we can differentiate several methods: chemical control methods, which go through the use of toxic pesticides for the elimination of pests; biological control methods, which are based on the introduction of species that repel or eliminate other invasive species; and finally, physical or mechanical control.
About the latter, we will give you all the necessary information.
What is physical pest control?
This method of pest control is based on using a physical agent with the ultimate goal of altering the place where they are and becoming uninhabitable or incompatible with pests so that they move away or end up dying.
These physical agents can be objects that we place as well as actions that we perform. The ultimate goal is for the plague to feel threatened or uncomfortable and decide to leave so as not to return.
Some physical control methods
As we have said before, the objective is to make the plague not want to be where it is.
For this, we can use a series of methods that prevent their entry, that prevent them from reaching their destination, or that they feel fear or disgust for what should seem juicy and appetizing.
Next, we will see some of these methods of physical pest control. These are the best known:
- The placement of quilts is one of the best known. These quilts can be made of plastic, paper or organic materials and are placed both on the entire surface of the plot (greenhouses) and on lines around the crops. For example, in the cultivation of asparagus, the placement of plastic quilts prevents the normal development of the plague of the turion fly.
- We can also place fine meshes to prevent access to some larger insects or other animals such as birds.
- The mosquito nets manage to keep away numerous flying insects such as aphids, flies, butterflies or thrips.
- Another method is to cover the ground with polyethylene to protect the base of the petal and prevent the larvae from eating the roots and stems that are under the ground.
- Some insect traps also work. There are many types, both adhesive and pheromone or chromatic. You will have to choose the one that best suits the type of plague you have.
Traps or heat treatments
One of the most effective methods of physical or mechanical control of pests is to repel or eliminate pests by high temperatures. These are some best-known methods that use heat to scare away pests:
- The use of thermal blankets, in addition to preventing the crop from freezing, can also prevent pests that hate high temperatures.
- Water itself can be a good ally in these cases. Introduce hot water into seeds, bulbs, tubers, and cuttings to kill possible pests.
- The hot air can be a good treatment to destroy the harmful organisms that are present in our crops or plants. Also, they act on both larvae and eggs as well as adult insects.
- The solarization is a treatment that works through solar radiation. Generally for this method, polyethylene plastics are also used in summer to cause the sun to cause natural temperatures to rise and eliminate pest organisms.
- The vaporization, moreover, serves as a disinfection treatment of the soil and the different elements or tools that we used and who may be infected.
- Similarly, flooding is an effective technique to drown pests. We must leave a piece of land flooded for a short period enough for the plague to run out of oxygen.