Pests Of Stored Feed And Their Control

Akopọ

A poultry keeper in Sokoto opens a sack of maize bran two months after buying it and finds the feed clumped together with silk webbing, small moths flying up as she loosens the mouth of the sack, and a corner of the sack gnawed clean through overnight. The bran she paid good money for is now partly dust, partly moth silk, partly rat droppings. Every farmer who stores feed for even a few weeks meets these same three enemies: weevils, rodents and moths, and every one of them can be beaten with methods a WAEC candidate is expected to know by name.

In this lesson you will learn to recognise each pest from the damage it leaves behind, so that a torn sack, a bored grain and a web of silk each point straight to their culprit. You will then learn the non-chemical and chemical methods used to control them, and the precautions that keep a chemical treatment safe for the animals that eventually eat the feed and the person who applies it.

Awọn Afojusun

  1. Identify common pests of stored animal feed
  2. Explain the damage caused by pests to stored feed
  3. State the methods of controlling pests of stored feed
  4. Explain the precautions taken when applying chemical control methods
  5. Distinguish between chemical and non-chemical methods of pest control

Akọ̀wé Ẹ̀kọ́

Feed is usually the single largest cost of keeping livestock, often more than half of it. Feed that is bought, transported and paid for, then left in a store for weeks before it is fed out, is under constant attack from three kinds of pests. Left unchecked, a bag of maize can lose a fifth of its weight to insects alone, and a bag gnawed open by rats can be finished within days. A farmer who cannot name the pest cannot choose the right control, and a farmer who chooses the wrong control can do more harm than the pest itself, for example by feeding animals grain still carrying a poison meant to kill rats. This topic teaches both halves of that skill together.

Ìdánwò Ẹ̀kọ́

Oriire fun ipari ẹkọ lori Pests Of Stored Feed And Their Control. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.

Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.

Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.

  1. Grains found with small round holes bored through them, with fine dust at the bottom of the bag, have most likely been attacked by: A. Rodents B. Weevils C. Moths D. Mites Answer: B
  2. The stage of a moth that actually feeds on and damages stored feed is the: A. Egg B. Larva C. Adult moth D. Pupa Answer: B
  3. Which of the following is a non-chemical (cultural) method of controlling pests of stored feed? A. Fumigation B. Grain-protectant dust C. Rodenticide D. Proper drying before storage Answer: D
  4. Rodenticide bait is normally placed in stations away from the feed itself in order to: A. Save the cost of the bait B. Attract more rodents at once C. Prevent the poison from contaminating the feed D. Speed up how quickly the bait works Answer: C
  5. The required waiting time after a fumigated store is opened before feed may safely be removed and fed to animals is called the: A. Incubation period B. Withdrawal (safety) period C. Gestation period D. Dry season Answer: B

Àwọn Ìbéèrè Tó Ti Kọjá

Ṣe o n ronu ohun ti awọn ibeere atijọ fun koko-ọrọ yii dabi? Eyi ni nọmba awọn ibeere nipa Pests Of Stored Feed And Their Control lati awọn ọdun ti o kọja.

Ibeere 1 Ìròyìn

TEST OF PRACTICAL KNOWLEDGE QUESTION

specimens

Study specimen J (Soldier ants),K (Weaver bird) and L (Weevil) and answer the questions that follows

(a)(i) State two harmful effects of each of specimens J, K, and L in livestock production.

(ii) State two ways of controlling each of the specimen J, K and L on livestock farms.

(b) Mention three other storage pests in farm animal production.