To prevent outbreaks of planthopper:
- Remove weeds from the field and surrounding areas.
- Avoid indiscriminate use of insecticide, which destroys natural enemies.
- Use a resistant variety. …
- Critical numbers: At a density of 1 BPH/stem or less there is still time to act in case the numbers increase.
How do I identify a brown plant hopper?
Symptom of Damage :
- Hopperburn or yellowing, browning and drying of plant.
- Circular patches of drying and lodging of matured plant.
- Nymphs and adults congregate at the base of the plant above the water level.
- Affected plant dries up and gives a scorched appearance called “hopper burn”.
Why is brown plant hopper called Poka?
Within a short time the affected paddy leaves dry up, leaving no hope of getting corns from them. A kind of harmful pest called brown plant hopper (BPH), locally known as ‘current poka’, is causing massive damage to their crops as it sucks the fluid of the stems, making the plants yellowish, they said.
What is hopper burn disease?
Hopperburn is a non-contagious disease of plants caused by the direct feeding damage of certain leafhoppers and planthoppers. Although long studied, especially with Empoasca spp. leafhoppers (Cicadellidae: Typhlocybinae), the mechanisms underlying hopperburn have only recently been elucidated.
What do brown planthoppers eat?
Like other hoppers, planthoppers have their mouthparts configured like a straw, which is inserted into plants and used for drinking sap. Many species can eat a wide range of plants, while others are limited to oaks, for instance, or grasses.
Which is not a natural predator of BPH?
Which of the following is not a natural predator of BPH? Sol: (b) Red ants.
Which is Monophagous pest of rice?
Yellow stem borer (YSB), Scirpophaga incertulas (Lepidoptera: Crambidae), a monophagous pest of paddy is considered as most important pest of rain fed low land and flood prone rice eco-systems.
Which is regular pest?
Regular pests: Occurring more frequently on a crop having close association with the crop. (eg) Brinjal shoot and fruit borer. Occasional pests: Occurring infrequently with no close association with a particular crop (eg) Snake gourd semilooper. Seasonal pests: Occurring during a particular part of the year.
Where do brown planthoppers live?
NILAPARVATA LUGENS (Stål), commonly known as the brown planthopper (BPH), is widely distributed in tropical, subtropical, and temperate regions of Asia, where occasional outbreaks seriously injure cultivated rice.
How do you control BPH in rice?
Control measures: When there is one or more brown planthoppers per tiller and when fewer natural enemies than pests are seen, then management of this pest is necessary. Drain water completely from the field for a week. Then apply intermittent (weekly) irrigation to reduce the BPH population.
How many ETL release control of brown plant hopper?
Circular patches of drying and lodging of matured plants are typical symptoms caused by this pest. It is the vector of grassy stunt, ragged stunt and wilted stunt diseases. ETL: 8-10 Nos./hill or 20 Nos./hill when spider is present at 1 No./hill.
What is BPH in plants?
The brown planthopper (BPH), Nilaparvata lugens (Stål) (Hemiptera: Delphacidae) is a planthopper species that feeds on rice plants (Oryza sativa L.). These insects are among the most important pests of rice, which is the major staple crop for about half the world’s population.
Which of the following insecticide is recommended for the control of brown plant hopper in Paddy?
Chess Chess For a Timely Treatment of Brown Planthopper Use Chess Chess is the most effective insecticide against the brown planthopper. It delivers immediate crop protection through permanent feeding inhibition. It minimize the damage, providing long duration control of brown planthopper, which will generate higher yield.
How do you control Gundhi bugs?
Management
- If possible, remove all weeds and grasses in and out of paddy fields to prevent population build-up of rice bugs in the following crop.
- Trap adult bugs using a light trap, sweep net and dirty trap of cattle urine/dung and then destroy the traps by suitable means.
What is leaf folder?
Leaf folders are caterpillars of a moth. … The feeding creates a see-through or transparent area on the leaf. They feed inside the folded leaf creating longitudinal white and transparent streaks on the blade. The caterpillars are yellow to green. Heavily infested fields appear scorched and have many folded leaves.
What is the scientific name of rice bug?
Leptocorisa oratorius Rice ear bug / Scientific names Damage of rice grains caused by the rice bug, Leptocorisa oratorius Fabricius (Heteroptera: Alydidae.
What insects damage the wheat crop?
Wheat midge Wheat midge. The major pest of spring wheat in most part of world is Wheat midge (WM) which can cause 30% reduction in wheat yield resulting in an economic loss of 30 million dollar.
Are planthoppers attracted to light?
Their presence can be detected by tapping plants with hand. They can also be detected in sticky traps. Adults with long wings are attracted to light sources.
Are planthoppers grasshoppers?
The name comes from their remarkable resemblance to leaves and other plants of their environment and that they often hop for quick transportation in a similar way to that of grasshoppers. However, planthoppers generally walk very slowly. … The infraorder contains only a single superfamily, Fulgoroidea.
Where do rice brown planthoppers lay?
Brown Planthopper Biology & Life Cycle Females start laying eggs in masses in the midrib of the leaf blades, laying between 2 and 11 eggs per mass. The eggs are cylindrical, slightly curved and only 1 mm long.
What is the scientific name of white backed plant hopper?
(white-backed planthopper)
Do aphids fly?
Although aphids cannot fly for most of their life cycle, they can escape predators and accidental ingestion by herbivores by dropping off the plant onto the ground. … They are often attended by ants, for the honeydew they produce and are carried from plant to plant by the ants through their tunnels.
Which of the following is a dipteran pest of rice?
It is a major insect pest of rice. The damage to the crop is done by the larvae which form galls commonly known as silver shoots or onion shoots. … Orseolia oryzae.
| Asian rice gall midge | |
|---|---|
| Scientific classification | |
| Order: | Diptera |
| Family: | Cecidomyiidae |
| Genus: | Orseolia |
What does Monophagous mean?
: feeding on or utilizing a single kind of food especially : feeding on a single kind of plant or animal.
What is insect pest of rice?
The rice plant is an ideal host for a large number of insect pests-root feeders, stems borers, leaf feeders and grain feeders. High yield losses associated with these insect pest categories portray the role of the insects in low rice yield in Nigeria and sub-Saharan Africa as a whole.
Are all insects pests?
Not all bugs are bad. Insects get labeled as pests when they start causing harm to people or the things we care about, like plants, animals, and buildings. Out of nearly one million known insect species, only about one to three percent are ever considered pests.
Which is insect trap crop?
Some important trap crops commonly used in pest management include bhendi/okra in cotton to trap bollworms and marigold at the border of the field. Sesamum is commonly being used as trap crop to attract pests such as diamondback moth in both cabbage and cauliflower.
What are insecticides?
Insecticides are chemicals used to control insects by killing them or preventing them from engaging in undesirable or destructive behaviors. They are classified based on their structure and mode of action. … A broad-range insecticide, generally the most toxic of all pesticides to vertebrates.
What are major pests?
Major pests are the species that need to be controlled. … These are the less serious species of insect that are recorded feeding or ovipositing on a crop plant. Usually they inflict only slight damage on the host, and often their effect is indiscernible.
Graduated from ENSAT (national agronomic school of Toulouse) in plant sciences in 2018, I pursued a CIFRE doctorate under contract with Sun’Agri and INRAE in Avignon between 2019 and 2022. My thesis aimed to study dynamic agrivoltaic systems, in my case in arboriculture. I love to write and share science related Stuff Here on my Website. I am currently continuing at Sun’Agri as an R&D engineer.