Your hesitation to wish has cost you dearly.
All apples on Earth spontaneously rot off of their trees, killing the seeds and, eventually, the last apple tree dies.
The first church of apples disbands and you-and the fruit you are God of- fade into legend. Eventually you rekindle some tiny recognition as marvel releases a comic in which their version of you is a D list villain to Thor, but the concept of apples is so fantastical and unrealistic that it kills the character. It's too unbelievable.
With no believers, you fall comatose, until such time as apples happen to evolve again, and inspire more worship.
Someday...
I wish for a can of clown repellent.
Wow harsh, although I never had any worshippers to begin with...
Granted, you find a can containing a magical substance that repels the very concept of ''clown'' away from it, and all associated concepts like laughter, makeup, large noses, circuses, wherever it is spread it causes a bizarre trail of destruction to follow as not only does the substance repelclowns, but also attracts rabid animals to it at a constant and improbable rate.
I wish that the apple god[me] had a beautiful apple temple upon which pears and other fruits were sacrificed to feed the ONE TRUE FRUIT.