Agricultural Science

Pests of Agricultural importance and Crops Attacked

len Alfred Ajibola - Tue, 19th March, 2019 @ 21:40

Topics in Agricultural Science

Prevention and Control of Crop Pests Economic Importance of Crop Pests Classification of Insect Pests and their Economic Importance Agricultural Machines and their Uses Soil Erosion: Causes of Soil Erosion Ways to prevent Soil Erosion Asexual Propagation in Plants, Types and Examples Differences between Gymnosperms and Angiosperms Scheme of Work, Agricultural Science, SS1, First Term Scheme of Work, Agricultural Science, SS1, Second Term Scheme of Work, Agricultural Science, SS1, Third Term Len Academy Agric Science exam questions, JSS1, First Term Len Academy Agric Science exam questions, JSS1, First Term, part 2 Agriculture Terms - Definitions and Meanings of Agricutural Terms (P - Q) Agricultural Terms: Definition and Meanings of Agricultural Terms (P and Q), part 2 Len Academy questions for Agric Science JSS1, 2nd Term Len Academy questions for Agric Science JSS1, 2nd Term, Part 2 Roles of Government in Agriculture Agricultural pest and Crops attacked Agriculture Terms - Definitions and Meanings of Agricutural Terms (I - O)


Academic Questions in Agricultural Science

Please check out our Test Your Knowledge page to see all Questions and Answers

Which of the following is an example of oil crop?

  • A. Melon

  • B. Rubber

  • C. Flax

  • D. Moringa

  • E. Ginger

  • F. Coffee

Concerning crops and plants, which of the following statement is incorrect?

  • A. All plants are not crops

  • B. All crops are plants

  • C. Cactus can be a crop

  • D. Corpse flower is not a plant

  • E. Venus flytrap is not a crop

  • F. All the options are correct

Which of the following is not a problem associated with agriculture?

  • A. Superfluous research facilities

  • B. Poor road network

  • C. Illiteracy

  • D. Lack of storage facilities

  • E. Limited mechanized farming

  • F. Bad government policies

Mallet - Len Academy

The above image is a _____.

  • A. Hammer

  • B. Crowbar

  • C. Shear

  • D. Secateur

  • E. Bolo

  • F. Mallet

Cutlass - Len Academy

The agricultural tool shown in the image (above) is used for the followings except _____.

  • A. For cutting tree branches, weeds, and other plant materials in farmland

  • B. To remove dirts from the top soil

  • C. For harvesting crops like sugarcane

  • D. To clear bushes

  • E. For planting crops like melon

  • F. To dig superficial holes for the planting of seeds

Which of the following statement is false concerning soil erosion?

  • A. The top soil is moved from one point to another

  • B. Man is an agent that bring about soil erosion

  • C. Wind and water are natural agents of soil erosion

  • D. Sheet erosion is said to occur when the surface of a land is eroded at an unequal levels

  • E. Deforestation will increase the likehood of wind erosion

  • F. Rill erosion results in the formation of miniature dongas on land

Gully erosion - Len Academy

The above diagram shows a _____ erosion.

  • A. Wind

  • B. Sheet

  • C. Rill

  • D. Gully

  • E. Landslide

  • F. Crooked

An instance of farming whereby a farmer uses animal and green manure as fertilizers in place of chemicals like NPK is termed _____.

  • A. Reformative farming

  • B. Alternative farming

  • C. Crude farming

  • D. Retrogressive farming

  • E. Non-Chemical farming

  • F. Agro-farming

LEN ACADEMY SMART SCHOOL SOFTWARE

Image

Click here to read more on its smart academic features. Recommend to a school and get N50,000

Please click here to kindly support education


What are Pests?

With regards to agriculture and plants, a pest is any organism that can attack plant and agricultural produce, rendering them unsuitable for harvest and unfit for the market.

Please read on the Prevention and Control of Pest here.

Pest can adversely affect a plant's seed, root, stem, leaf and flower thereby largely reducing the overall quality of harvested fruits and vegetables.

Note: Generally, a pest can cause physical damage to humans, animals and crops.

Please read on the Problems of Agriculture in Nigeria here.

An organism will be considered a pest if it does one of the followings:

  • Attack crop plants and eat it's seeds, roots, stem, leaves and flowers. Examples are Locust and grasshoppers.
  • Cause damage to stored food, fruits or other agricultural produce. Some may even urinate or deaficate on these products. Examples are rodents, cockroaches and mice.
    Please read on the Economic Importance of Crop Pests here.
  • Attack and kill farm animals like goats, sheep and cattle. Examples are foxes, wild cats and snakes.
  • Act as disease vectors. A vector is an organism that carries parasite and other disease causing organisms, without being affected; but when they introduce the parasites into their host, such host becomes infected with disease. Examples of vectors are rodents and mosquitoes.
    Please read more on Vectors of Diseases here.

 

Examples of Crop Pest

Below are some examples of crop pests:

1. Insects: Based on their mode of feeding, insect pest can be put into:

2. Rodents

3. Monkeys

4. Birds

5. Nematodes

6. Man

Please read on Micro-organisms causing Food, Water and Air Borne Diseases here.

 

Crops attacked by Pests

Below is a summary of crops and the pest that attack them:

  1. Maize: Maize weevils, birds, African black beetles, stem borers, greasy cut worm and army worms.
  2. Cereals: Drugstore beetle, several weevil specie (rice weevil, maize weevil), confused flour beetle, red flour beetle, birds, saw toothed beetle, merchant grain beetle, rodents, several Aphids species and wheat bug.
  3. Please read on the Differences between Plants and Crops here.

  4. Beans: Bean weevil, seedcorn maggots, leafhoppers, aphids and spider mites.
  5. Cotton: Cotton bollworm, plant bugs, cotton strainers, thrips, stink bugs, spider mites and aphids.
  6. Groundnut: Red hairy caterpillar, jassids, aphids, snails, spodoptera and several thrips specie.
  7. Sorghum: Corn earworms, sorghum webworms, sorghum sidge weevils, stink bugs, fall armyworms and aphids.

Note: Cereals include crops like rice, maize or corn, Barley, millet, sorghum and oats.

Please click here to follow Len Academy on Google News.

Please like and follow our official facebook page here for great educational write-ups.

You can follow Len Academy on twitter here.Thank you.


Kindly share this article via the links below:


len

Alfred Ajibola is a Medical Biochemist, a passionate Academician with over 7 years of experience, a Versatile Writer, a Web Developer, a Cisco Certified Network Associate and a Cisco CyberOps Associate.


Please Register here or Login here to contribute to this topic by commenting in the box below.

CONTRIBUTE TO THIS TOPIC | ASK A QUESTION


Amazing facts in Agricultural Science

🥜 Peanuts 🥜 are legumes and not nuts

Although plants neither see nor hear, they can recognize their siblings and even give them preferential treatments 🤔

Squirrels do plant more 🌲 trees 🌲 (through their actions) than an average human in their lifetime. They often hide their acorns and nuts underground and forget about them 😁

🐄 Cows 🐄 have got the ability to walk up stairs, but not down stairs

A group of cows 🐄 🐄 🐄  is called a team, drove or herd.

People just prefer to call them herd


NOTABLE POINTS IN Agricultural Science

Below are some common types of erosion:

  • Water Erosion: It is caused by rainfall and flooding on the topsoil. As a result of water erosion, some layers of the topsoil are lost.

  • Sheet Erosion: When an entire surface of land becomes eroded at a uniform (equal) level, such is referred to as sheet erosion.

    Sheet Erosion - Len Academy

  • Wind Erosion: It results from the actions of wind on a bare land. Wind erosion is often seen in deserts. Overgrazing and lack of vegetation cover will also enhance wind erosion on topsoil.

​​​Please read more on types of soil erosion here.

Soil erosion is defined as a process through which the topsoil is removed or moved from one point to another by agents like wind, water, man and animals.

Soil erosion occurs naturally (wind and water) and may also be facilitated by living organisms.

Soil erosion is more likely to occur on a sloppy land and land with no vegetation cover. When this occurs, the nutrient rich layer of the topsoil is washed away; and this ultimately results in fewer plants growing on such eroded soil.

Please read more on soil erosion here

There are about 630 different kinds of carnivorous plants.

Carnivorous plants are plants that derive some or most of their nutrients by consuming small animals, especially insects.

Carnivorous plants are also referred to as insectivorous plants.

Some example of carnivorous plants include sundew and Venus flytrap.

Please read more on Carnivorous Plants here