As nouns the difference between alga and blanketweed

is that alga is start while blanketweed is a filamentous alga often found in ponds.

As a proper noun pond

is .

As a noun blanketweed is

a filamentous alga often found in ponds.

Oxadiazolone is likely misspelled.

Oxadiazolone has no English definition.

As a noun methazole is

a particular oxadiazolone herbicide.

As a noun enzyme

is a globular protein that catalyses a biological chemical reaction.

As an adjective preemergent is

preventing the germination of seeds by inhibiting an important enzyme.

As an adjective selective

is .

As a noun monolinuron is

a selective systemic herbicide, pesticide and algaecide.

As an adjective systemic

is embedded within and spread throughout and affecting a group, system, body, economy, market, or society as a whole.

As a noun monolinuron is

a selective systemic herbicide, pesticide and algaecide.

As nouns the difference between herbicide and monolinuron

is that herbicide is a substance used to kill plants while monolinuron is a selective systemic herbicide, pesticide and algaecide.

As nouns the difference between pesticide and monolinuron

is that pesticide is anything, especially a synthetic substance but also any substance (eg sulfur), or virus, bacterium, or other organism, which kills or suppresses the activities of pests while monolinuron is a selective systemic herbicide, pesticide and algaecide.

As nouns the difference between diamine and prometon

is that diamine is (chemistry) any compound containing two amino functional groups while prometon is a herbicide, n,n'-diisopropyl-6-methoxy-1,3,5-triazine-2,4-diamine.

As a noun herbicide

is a substance used to kill plants.

As an adjective preemergent is

preventing the germination of seeds by inhibiting an important enzyme.