Sure, but you need to know the concentration of dichlorvos, the dilution ratio you spray and your spraying density. Then, according to the biodegradation time of dichlorvos, you should consider the weather, temperature, humidity, soil chemistry, crop absorption rate, crop biodegradation rate of dichlorvos, human resistance and lethal weight of different people to toxins, and then calculate the time to eat vegetables, which is the safe range for you to spray. Then you can spray it boldly, but at present, the Ministry of Agriculture will conduct spot checks on the vegetables sprayed with dichlorvos, and if it is found out, it will be destroyed, and you will be fined. If you are poisoned, you will be detained or sentenced, because dichlorvos are forbidden to be sprayed on vegetables and can only be used on forests and non-edible plants. But what kind of bug do you think this is? You can refer to the questions I answered before taking the medicine. I hope it helps you.

You mean besides vegetable mealworms? Dichlorvos can kill Pieris rapae, but now dichlorvos can't be used to kill Pieris rapae. Trichlorfon or methyl abamectin or other beta-cypermethrin or deltamethrin or other pesticides can be used.

If you are brave, you can also spray methamidophos and bhc.