The US EPA states that “cold storage”.
This shouldn’t be regarded as something that normally happens, because if used properly this chemical is safe, according to Wang Liangju, a professor with the College of Horticulture at Nanjing Agricultural University. He was there when the watermelons started exploding and says that it’s the farmers fault because they used the drug too late in the season, and the heavy rain increased the possibility of the watermelons bursting open. He adds that had they used the drug when the watermelons were still unripen, this wouldn’t have happened. He continues by saying that “the melon they were planting is a thin-rind variety and these kind are actually nicknamed the ‘exploding melon’ because they tend to split”, which also may be a part of the problem.