One hermi plant can and will ruin your entire crop if let to go unchecked. For right now, make sure that those are male flowers come in, and if they are just snip them off before they open. You will loose some growth at that bud site, but it should be okay. Also, the hermi plant will only make fem seeds if the feminized seed/hermi plant pollinates itself. But, as I've stated, I wouldn't use those fem seeds that it produces because they will more than likely produce extremely unstable seeds. So any form of mild stress (temp to high/low, light intensity too high, overfeed with nutrients, topping, supercropping, ect.) will hermie those plants in a heart beat. The reason is because the main step to making Feminized seeds is from forcing a plant to hermie by fucking with the plants light cycles in ways mother earth never intended. This will make the plant hermie and the self-pollinate. The self-pollinated seeds will then be "feminized seeds". The problem with this is that then by forcing it to hermie, you are encoding hermaphrodite traits within the seed DNA, changing the evolutionary path of the seed from either male/female to hermie mutations. This is the reason why feminized seeds have such a high ratio of hermies. It is already encoded within their DNA evolution to hermaphrodite, making it so much more easier to do so with any form of mild stress. This isn't a great breeding technique and it encourages hermaphodism within a gene-pool, making the gene-pool weak and unstable. No "good" breeder has any reasons to make feminized seeds EXCEPT for one reason alone; profit.
When I personally asked Ajran of Greenhouse Seeds at the 2007 Cannabis Cup why they make feminized seeds, after explaining the above to him (which he already knew), he told me, and I quote "because their is a market for it. people love feminized seeds, and we are just supplying that market". Capitalist jargon at it's best. No love or respect for the plant, just love & respect for money. Not a great breeder.
On that note, I HAVE grown feminized seeds in the past with good results, but the fem seeds couldn't compare to the vigor and over-all quality of regular cannabis seed plants. Everytime the regular seeds have won. I also understand that for small personal grows, fem seeds are the most ecomonic opinion ( I too can only grow 4 plants at a time, because I live in an apartment). Just be aware of where they came from and what they are if you are going to use them. And don't complain when they herm on you! haha. And also, even though I bash the Amsterdam scene, I am also going to the 2009 Cannabis Cup this year. Amsterdam just have a very loving vibe to it and I love the culture. Even if the weed can't compare to what we in North America breed, it is still worth the trip to be able to smoke some dank in a coffee shop with a hot cup of tea, and chat up about fine cannabis to dutch folk. Theres no place like it, espically during the cup. I also hear that last year the quality of the weed improved, finally. I saw pics from HT and they do look much more resin coated.
Well thats my novel! haha.