Biological control and ecological engineering in rice fields

Biological pest control by the trusted pest control UAE services in rice fields is essential to reduce yield losses. It also reduces the use of pesticides, which are expensive and potentially harmful to human health, wildlife, and the environment.

How do pests damage rice fields?

Pests can damage rice crops by feeding on plant tissues that result in the loss of leaves, stems, or panicles, but some pests reproduce quickly enough that they can destroy entire fields within a short time. For example, planthoppers are severe pests in Asia, especially during the summer months when they produce several generations per year. They feed voraciously on virtually all above-ground parts of rice plants, causing direct damage to grain production through shoot cutting resulting in panicle abortion.

What type of pests attacks rice crops?

Pests that attack rice crops mainly include insect pests, e.g., stem borers (rice stalk borer, rice leaf folder), grasshoppers, and water bugs. Rice root borers attack the roots of young plants causing poor stand establishment. The most common insect pests attacking rice include white-backed planthoppers, brown planthopper, and green leafhoppers. The severity of pest damage is primarily affected by time, weather conditions, and the degree of the infestation, which varies with geographical location.

Next-Generation Control Of Rice Pests:

Chemical Control of Rice Pests:

Many pest control Ajman services use chemical pesticides such as chlorpyrifos and synthetic pyrethroids to control rice pests. These are available from the pest control shop. However, these pesticides can cause harm to human health, environmental contamination, and pest resistance. Therefore, there is a need to develop ecological engineering to encourage natural enemies that suppress rice pests’ population densities.

Biological Control of Rice Pests:

Pest control Ajman professionals use biological means to control rice pests. This involves using one or more species of predator, parasite, pathogen, or competitor to reduce pest numbers below economically damaging levels. There are three primary ways by which biological control agents attack their invertebrate hosts: 

  1. By eating them 
  2. By injecting toxic materials into them 
  3. By paralyzing them with neurotoxins before eating or laying eggs on them

For example, the Stethorus punctum can be used against lepidopterous pests of rice. This beetle feeds on the eggs and young larvae of many species of moths, including navel orange worm, Oriental leafworm moth, and rice leaf folder.

Biological inundative

Another method of biological control by pest control UAE services include applying beneficial organisms directly to the rice plant. These are known as inundative biological control. Bridget Rooney Koch

Biological pesticides

Biological pesticide products or beneficial organisms are sprayed on target pest populations in the field by pest control Ajman professionals. At least six groups of aquatic invertebrates commonly receive inundative releases to suppress densities of rice damages. 

Predaceous beetles

The first group consists of predaceous beetles (e.g., whirligig beetle, water scavenger beetles). These beetles feed on eggs and pre-and post- hatching larvae of various insects, including planthoppers, grasshoppers, and earworms.

True bugs

A second group used by pest control Abu Dhabi services consists of specific true bugs (Heteroptera) such as giant waterbugs. These giant bugs prey mainly on mid- instars and adult planthoppers; insidious flower bug nymphs, green and brown lacewings, and confident damsel bug nymphs, which feed on planthopper eggs first instars. 

Insect parasitoids

The third group utilized by pest control Abu Dhabi services consists of insect parasitoids. For example, the tachinid flies family such as Telostylinus angusticollis kills young nymphs of green rice leafhoppers; Eulophidae such as Anaphes flavipes, a parasite that attacks the egg stage of white-backed planthopper and certain Braconid wasps. 

Entomopathogenic fungi

A fourth group that is used by pest control Abu Dhabi services as biological predators include entomopathogenic fungi. For example, Lagenidium giganteum and Metarhizium anisopliae.

Ecological engineering

Ecological engineering, in this case, is a process that begins with a goal. Goals could be preventing soil erosion, sequestering carbon in the soil, creating habitats for wildlife, or reducing pest damage. The next step is to identify an ecological service, such as weed suppression, nutrient cycling, or soil physical condition improvement to provide the desired outcome. Finally, you need to search for a specific agent that can provide the desired service. A rice farmer may be looking for an agent that suppresses weeds, recycles nutrients, or disturbs the soil surface.

 

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