Insect pests have always been a major problem in orchards, and the common way to control insects is to spray insecticides. Although this method can be effective quickly, it also produces many drawbacks such as pesticide residues, insect resistance, and multiple types of pests, which are difficult to kill all and costly.
In contrast, "insect treatment" not only does not need to be managed, but also has lower cost, stronger sustainability and more environmental protection. Here are a few natural enemies of pests that are suitable for introduction in orchards.
First, predatory type
1. Praying mantis
Praying mantises eat a huge amount of pests a year to reach tens of thousands of pests, mantises prey on many types of insects there are more than 60 kinds of light pests, such as red bell worms, corn borers, vegetable borers, aphids, mosquitoes, flies, locusts, etc., and sometimes attack birds. Introduction to orchards can eat most of the pests and improve the quality of the fruit.
Introduction: Catch or buy live mantises (mantis eggs), feed them to a certain size with live aphids or some meat, and put them in the orchard in the evening.
2. Walking bugs
The walking insect is also known as 'unwilling', which means that there is no room for other insects next to it, and it is mentioned in the Mengxi Pen Talk that "when the insect is encountered, it is beaten with pincers, which are divided into two paragraphs." "The sub-square worm is the armyworm, which shows its ferocity. Walking insects are mainly meat-eating, extremely aggressive to pests, and there are almost no pests in the place, which is very suitable for introduction into orchards.
Introduction method: Walking insects like shade wetlands, you can place some leaves on the ground, and then catch or buy some live walking insects to put in.
3. Ladybugs
There are many types of ladybugs, and some of them are extremely harmful to crops. However, some carnivorous ladybirds are beneficial insects, such as the seven-star ladybird main food aphid, the small hairy ladybird staple leaf mite and so on. Yidu County, Hubei Province, once introduced the big red ladybug into the citrus orchard to control the insect pest of blowing sponges, and achieved good results.
Introduction method: The shady and humid environment is conducive to the reproduction of ladybirds, and in the spring evening, a few small leaf piles are piled with dead leaves, poured with some water, and the purchased carnivorous ladybirds (ladybird eggs) are put in.
2. Parasitic type
1. Red-eyed bees
Red-eyed wasps are parasitic insects, adults lay eggs into other insects, and larvae eat their hosts to complete their growth. The main parasitic insects of the red-eyed bee are extensive, and the vast majority of insects are its parasitic objects, such as corn borer, striped borer, cotton bollworm, twill moth, armyworm and ground tiger. It can be artificially multiplied for biological control.
Introduction method: It can be used to reproduce in large quantities from the eggs of castor silkworm, tulip silkworm, wheat moth, rice moth and Mediterranean mealybug and put into the orchard.
2. Ji Bee
The bee is a sworn enemy of insects, parasitizing other insects to reproduce; the parasite range is extremely wide, such as leafminer moths, red spiders, borers, rust spiders, red roundworms, brown roundworms, kangpanworms, sagittarius worms and blowing insects are its parasitic objects, even in the trunk such as borers, large tree bees, or some insect eggs in the water It can parasitize; it is of great significance for the control of orchard pests.
How to introduce: Put a few dry pine trees in the orchard to attract some large tree bees to parasitize them, and when it is large enough, it will begin to parasitize other insects.
Humans have a long history of fighting pests, and pests still survive tenaciously with their strong reproductive function. The only way to completely eliminate pests is 'treating insects with insects', and the "Mengxi Pen Talk" mentions about 'treating insects with insects', that is, using the mutual restraint between insects and insects to control insect plagues, and the results achieved are also very effective. If you want to know more, you may wish to pay attention to ↓↓↓ to exchange and share together.