Rice weevil, rice borer, and rice leafhopper are all common pests of rice.

Pyricularia oryzae is the scientific name of the fungus that causes rice blast disease.

Rice blast, rice sheath blight, and rice brown spot are all common diseases of rice.

Xanthomonas oryzae pv. oryzae is the scientific name of the bacterium that causes rice bacterial blight.

Wheat stem sawfly, wheat aphid, and wheat curl mite are all common pests of wheat.

Puccinia graminis f. sp. tritici, Puccinia recondita f. sp. tritici, and Puccinia striiformis f. sp. tritici are all fungi that cause wheat stem rust.

Wheat stem rust, wheat leaf rust, and wheat stripe rust are all common diseases of wheat.

Xanthomonas campestris pv. tritici is the scientific name of the bacterium that causes wheat bacterial blight.

Corn earworm, corn borer, and corn rootworm are all common pests of corn.

Ustilago maydis is the scientific name of the fungus that causes corn smut.

Corn smut, corn leaf blight, and corn stalk rot are all common diseases of corn.

Xanthomonas campestris pv. zeae is the scientific name of the bacterium that causes corn bacterial blight.

Barley stem sawfly, barley aphid, and barley stripe rust are all common pests of barley.

Puccinia graminis f. sp. hordei, Puccinia recondita f. sp. hordei, and Puccinia striiformis f. sp. hordei are all fungi that cause barley stem rust.

Barley stem rust, barley leaf rust, and barley stripe rust are all common diseases of barley.