There are usually two durian crops a year in Peninsular Malayia, in about December and about July. However, last December the crop was very poor. Last night I came across a few durians for sale. I stopped to talk to the stall keeper. He told me his fruits are the last of a miserable crop that he had obtained from Johore. However, he said there will be a bumper harvest in July, because durians all over Peninsular Malaysia are now heavy with little fruits.
Durians take 3-4 months from flowering to fruiting, so the flowering must have occured in end March to early April 2008. A big flowering event in durians usually coincides with a 'gregarious flowering' event in the forests affecting all kinds of trees. Hence I expect a bumper crop of all kinds of forest fruits, and a feast for the animals of the forest in July to August. It has been many years since the last such event.
A bumper crop is not good news for durian farmers, because it means the price will be too low for them to make a profit, or even to pay for the fertilizers and for the labour to pick up the fruits.