Complex sentence: As for the season in general, the summer infestations are usually contained with the exception of cooler environment and more susceptible cultivars, while there are infestation peaks from the months of September until cold weather arrives, especially with a rainy climate.
Split into simpler sentences: As for the season in general, the summer infestations are usually contained with the exception of cooler environment and more susceptible cultivars. On the other hand, there are infestation peaks from the months of September until cold weather arrives, especially with a rainy climate.