A pest may undergo an introduction.Logical formLearned from18 sentences. A (plant pest) can be in a country.Logical formLearned from18 sentences. (Pest problems) may be reported.Logical formLearned from18 sentences. (Pest species) can be invasive.Logical formLearned from17 sentences. A spread may pertain-to pests.Logical formLearned from17 sentences. A pest can be difficult.Logical formLearned from17 sentences. Pests can be nasty.Logical formLearned from17 sentences. A pest can be harmful.Logical formLearned from17 sentences. A pest may be controlled.Logical formLearned from17 sentences. A pest can be in a us-state.Logical formLearned from17 sentences. A host can be constituted-of-or-filled-with pests.Logical formLearned from17 sentences. Pests can be in a garden.Logical formLearned from17 sentences. A (pest management) can be based.Logical formLearned from17 sentences. Pests can be constituted-of-or-filled-with significance.Logical formLearned from17 sentences. A (pest risk) can be unwarranted.Logical formLearned from17 sentences.