Why are my jalapeño peppers suddenly wilting at the tips of the fruit?
Pictures would help on this, but the fruit tips showing distress is often an incipient indicator of blossom end rot in tomatoes, peppers and similar vegetable fruits is often a sign that there isn't enough free calcium available in their growing medium during the fruit growth.
Things that can mess up the calcium availability are:
- not enough calcium in the soil
- excessive watering
- allowing the soil to dry out, followed by a good overwatering
- over-fertilizing with nitrogen products or excess sodium/potassium